51595632647 has 16 divisors (see below), whose sum is σ = 59006609760. Its totient is φ = 44720750592.

The previous prime is 51595632637. The next prime is 51595632679. The reversal of 51595632647 is 74623659515.

It is a cyclic number.

It is not a de Polignac number, because 51595632647 - 2³⁴ = 34415763463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51595632607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896378 + ... + 952199.

It is an arithmetic number, because the mean of its divisors is an integer number (3687913110).

Almost surely, 2^51595632647 is an apocalyptic number.

51595632647 is a deficient number, since it is larger than the sum of its proper divisors (7410977113).

51595632647 is a wasteful number, since it uses less digits than its factorization.

51595632647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848722.

The product of its digits is 6804000, while the sum is 53.

The spelling of 51595632647 in words is "fifty-one billion, five hundred ninety-five million, six hundred thirty-two thousand, six hundred forty-seven".