51851834803671 has 12 divisors (see below), whose sum is σ = 80423253981432. Its totient is φ = 29629619887728.

The previous prime is 51851834803661. The next prime is 51851834803679. The reversal of 51851834803671 is 17630843815815.

It is not a de Polignac number, because 51851834803671 - 2⁶ = 51851834803607 is a prime.

It is a super-2 number, since 2×51851834803671² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51851834803679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176366784900 + ... + 176366785193.

It is an arithmetic number, because the mean of its divisors is an integer number (6701937831786).

Almost surely, 2^{51851834803671} is an apocalyptic number.

51851834803671 is a deficient number, since it is larger than the sum of its proper divisors (28571419177761).

51851834803671 is a wasteful number, since it uses less digits than its factorization.

51851834803671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352733570110 (or 352733570103 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 60.

The spelling of 51851834803671 in words is "fifty-one trillion, eight hundred fifty-one billion, eight hundred thirty-four million, eight hundred three thousand, six hundred seventy-one".