51126010650 has 384 divisors, whose sum is σ = 170869063680. Its totient is φ = 11070432000.

The previous prime is 51126010601. The next prime is 51126010657. The reversal of 51126010650 is 5601062115.

It is a happy number.

51126010650 is a `hidden beast` number, since 5 + 1 + 1 + 2 + 6 + 0 + 1 + 0 + 650 = 666.

51126010650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51126010650² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51126010657) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5980279 + ... + 5988821.

It is an arithmetic number, because the mean of its divisors is an integer number (444971520).

Almost surely, 2^51126010650 is an apocalyptic number.

51126010650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51126010650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85434531840).

51126010650 is an abundant number, since it is smaller than the sum of its proper divisors (119743053030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51126010650 is a wasteful number, since it uses less digits than its factorization.

51126010650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8619 (or 8608 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 51126010650 its reverse (5601062115), we get a palindrome (56727072765).

The spelling of 51126010650 in words is "fifty-one billion, one hundred twenty-six million, ten thousand, six hundred fifty".