51484790700 has 720 divisors, whose sum is σ = 208590649344. Its totient is φ = 10712217600.

The previous prime is 51484790633. The next prime is 51484790701. The reversal of 51484790700 is 709748415.

It is a happy number.

51484790700 is a `hidden beast` number, since 514 + 8 + 47 + 90 + 7 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (51484790701) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 29880039 + ... + 29881761.

Almost surely, 2^51484790700 is an apocalyptic number.

51484790700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51484790700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104295324672).

51484790700 is an abundant number, since it is smaller than the sum of its proper divisors (157105858644).

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

51484790700 is a wasteful number, since it uses less digits than its factorization.

51484790700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804 (or 1788 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 51484790700 in words is "fifty-one billion, four hundred eighty-four million, seven hundred ninety thousand, seven hundred".