51080246997 has 8 divisors (see below), whose sum is σ = 73345995744. Its totient is φ = 31433998128.

The previous prime is 51080246989. The next prime is 51080247011. The reversal of 51080246997 is 79964208015.

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

It is not a de Polignac number, because 51080246997 - 2³ = 51080246989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51080246927) 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, 654874923 + ... + 654875000.

It is an arithmetic number, because the mean of its divisors is an integer number (9168249468).

Almost surely, 2^51080246997 is an apocalyptic number.

It is an amenable number.

51080246997 is a deficient number, since it is larger than the sum of its proper divisors (22265748747).

51080246997 is a wasteful number, since it uses less digits than its factorization.

51080246997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309749939.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 51080246997 in words is "fifty-one billion, eighty million, two hundred forty-six thousand, nine hundred ninety-seven".