51901737871032 has 128 divisors (see below), whose sum is σ = 164936072793600. Its totient is φ = 14813889375744.

The previous prime is 51901737871003. The next prime is 51901737871037. The reversal of 51901737871032 is 23017873710915.

51901737871032 is a `hidden beast` number, since 5 + 190 + 17 + 378 + 71 + 0 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 51901737871032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51901737871037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16090098 + ... + 19044545.

It is an arithmetic number, because the mean of its divisors is an integer number (1288563068700).

Almost surely, 2^{51901737871032} is an apocalyptic number.

It is an amenable number.

51901737871032 is an abundant number, since it is smaller than the sum of its proper divisors (113034334922568).

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

51901737871032 is a wasteful number, since it uses less digits than its factorization.

51901737871032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35135642 (or 35135632 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 54.

The spelling of 51901737871032 in words is "fifty-one trillion, nine hundred one billion, seven hundred thirty-seven million, eight hundred seventy-one thousand, thirty-two".