51906900520674 has 48 divisors (see below), whose sum is σ = 116631837285600. Its totient is φ = 17302075035840.

The previous prime is 51906900520649. The next prime is 51906900520697. The reversal of 51906900520674 is 47602500960915.

51906900520674 is a `hidden beast` number, since 51 + 9 + 0 + 6 + 9 + 0 + 0 + 520 + 67 + 4 = 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 51906900520674.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39027369 + ... + 40335459.

It is an arithmetic number, because the mean of its divisors is an integer number (2429829943450).

Almost surely, 2^{51906900520674} is an apocalyptic number.

51906900520674 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

51906900520674 is an abundant number, since it is smaller than the sum of its proper divisors (64724936764926).

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

51906900520674 is a wasteful number, since it uses less digits than its factorization.

51906900520674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389757 (or 1389745 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 51906900520674 in words is "fifty-one trillion, nine hundred six billion, nine hundred million, five hundred twenty thousand, six hundred seventy-four".