51797049147 has 24 divisors (see below), whose sum is σ = 77409040800. Its totient is φ = 33335826048.

The previous prime is 51797049137. The next prime is 51797049151. The reversal of 51797049147 is 74194079715.

It is a happy number.

51797049147 is a `hidden beast` number, since 517 + 9 + 70 + 49 + 14 + 7 = 666.

It is not a de Polignac number, because 51797049147 - 2¹⁵ = 51797016379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51797049093 and 51797049102.

It is not an unprimeable number, because it can be changed into a prime (51797049107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3087879 + ... + 3104607.

It is an arithmetic number, because the mean of its divisors is an integer number (3225376700).

Almost surely, 2^51797049147 is an apocalyptic number.

51797049147 is a deficient number, since it is larger than the sum of its proper divisors (25611991653).

51797049147 is a wasteful number, since it uses less digits than its factorization.

51797049147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28627 (or 28624 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 54.

The spelling of 51797049147 in words is "fifty-one billion, seven hundred ninety-seven million, forty-nine thousand, one hundred forty-seven".