51951068457 has 8 divisors (see below), whose sum is σ = 69394726176. Its totient is φ = 34570728192.

The previous prime is 51951068453. The next prime is 51951068483. The reversal of 51951068457 is 75486015915.

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

It is not a de Polignac number, because 51951068457 - 2² = 51951068453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51951068453) 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, 15827448 + ... + 15830729.

It is an arithmetic number, because the mean of its divisors is an integer number (8674340772).

Almost surely, 2^51951068457 is an apocalyptic number.

It is an amenable number.

51951068457 is a deficient number, since it is larger than the sum of its proper divisors (17443657719).

51951068457 is a wasteful number, since it uses less digits than its factorization.

51951068457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31658727.

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 51951068457 in words is "fifty-one billion, nine hundred fifty-one million, sixty-eight thousand, four hundred fifty-seven".