51516123940598 has 8 divisors (see below), whose sum is σ = 81341248327320. Its totient is φ = 24402374498160.

The previous prime is 51516123940543. The next prime is 51516123940637. The reversal of 51516123940598 is 89504932161515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51516123940598² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677843736023 + ... + 677843736098.

It is an arithmetic number, because the mean of its divisors is an integer number (10167656040915).

Almost surely, 2^{51516123940598} is an apocalyptic number.

51516123940598 is a deficient number, since it is larger than the sum of its proper divisors (29825124386722).

51516123940598 is a wasteful number, since it uses less digits than its factorization.

51516123940598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355687472142.

The product of its (nonzero) digits is 11664000, while the sum is 59.

The spelling of 51516123940598 in words is "fifty-one trillion, five hundred sixteen billion, one hundred twenty-three million, nine hundred forty thousand, five hundred ninety-eight".