51434425700 has 72 divisors (see below), whose sum is σ = 127649121600. Its totient is φ = 17621976960.

The previous prime is 51434425657. The next prime is 51434425709. The reversal of 51434425700 is 752443415.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (51434425709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 974591 + ... + 1026009.

Almost surely, 2^51434425700 is an apocalyptic number.

51434425700 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 51434425700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63824560800).

51434425700 is an abundant number, since it is smaller than the sum of its proper divisors (76214695900).

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

51434425700 is a wasteful number, since it uses less digits than its factorization.

51434425700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52869 (or 52862 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The spelling of 51434425700 in words is "fifty-one billion, four hundred thirty-four million, four hundred twenty-five thousand, seven hundred".