51398024832 has 192 divisors, whose sum is σ = 184399076160. Its totient is φ = 13350113280.

The previous prime is 51398024789. The next prime is 51398024837. The reversal of 51398024832 is 23842089315.

51398024832 is a `hidden beast` number, since 513 + 9 + 80 + 24 + 8 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51398024837) 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, 201013 + ... + 378420.

It is an arithmetic number, because the mean of its divisors is an integer number (960411855).

Almost surely, 2^51398024832 is an apocalyptic number.

It is an amenable number.

51398024832 is an abundant number, since it is smaller than the sum of its proper divisors (133001051328).

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

51398024832 is a wasteful number, since it uses less digits than its factorization.

51398024832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579471 (or 579456 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 51398024832 in words is "fifty-one billion, three hundred ninety-eight million, twenty-four thousand, eight hundred thirty-two".