51431120502155 has 8 divisors (see below), whose sum is σ = 61717702452000. Its totient is φ = 41144657835456.

The previous prime is 51431120502109. The next prime is 51431120502199. The reversal of 51431120502155 is 55120502113415.

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

It is a cyclic number.

It is not a de Polignac number, because 51431120502155 - 2⁸ = 51431120501899 is a prime.

It is a super-2 number, since 2×51431120502155² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28869455 + ... + 30599144.

It is an arithmetic number, because the mean of its divisors is an integer number (7714712806500).

Almost surely, 2^{51431120502155} is an apocalyptic number.

51431120502155 is a deficient number, since it is larger than the sum of its proper divisors (10286581949845).

51431120502155 is a wasteful number, since it uses less digits than its factorization.

51431120502155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59641573.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 51431120502155 in words is "fifty-one trillion, four hundred thirty-one billion, one hundred twenty million, five hundred two thousand, one hundred fifty-five".