51156097519 has 8 divisors (see below), whose sum is σ = 56520292320. Its totient is φ = 46053570816.

The previous prime is 51156097501. The next prime is 51156097537. The reversal of 51156097519 is 91579065115.

It is an interprime number because it is at equal distance from previous prime (51156097501) and next prime (51156097537).

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 51156097519 - 2⁹ = 51156097007 is a prime.

It is a super-2 number, since 2×51156097519² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51156094519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65416614 + ... + 65417395.

It is an arithmetic number, because the mean of its divisors is an integer number (7065036540).

Almost surely, 2^51156097519 is an apocalyptic number.

51156097519 is a deficient number, since it is larger than the sum of its proper divisors (5364194801).

51156097519 is a wasteful number, since it uses less digits than its factorization.

51156097519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130834049.

The product of its (nonzero) digits is 425250, while the sum is 49.

The spelling of 51156097519 in words is "fifty-one billion, one hundred fifty-six million, ninety-seven thousand, five hundred nineteen".