51080397539 has 8 divisors (see below), whose sum is σ = 54692826480. Its totient is φ = 47535490816.

The previous prime is 51080397523. The next prime is 51080397547. The reversal of 51080397539 is 93579308015.

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 51080397539 - 2⁴ = 51080397523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51080397509) 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, 16878989 + ... + 16882014.

It is an arithmetic number, because the mean of its divisors is an integer number (6836603310).

Almost surely, 2^51080397539 is an apocalyptic number.

51080397539 is a deficient number, since it is larger than the sum of its proper divisors (3612428941).

51080397539 is a wasteful number, since it uses less digits than its factorization.

51080397539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33761109.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The spelling of 51080397539 in words is "fifty-one billion, eighty million, three hundred ninety-seven thousand, five hundred thirty-nine".