49686364825 has 24 divisors (see below), whose sum is σ = 65458232280. Its totient is φ = 37341158400.

The previous prime is 49686364817. The next prime is 49686364867. The reversal of 49686364825 is 52846368694.

It can be written as a sum of positive squares in 12 ways, for example, as 11197025856 + 38489338969 = 105816^2 + 196187^2 .

It is not a de Polignac number, because 49686364825 - 2³ = 49686364817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 899296 + ... + 952945.

It is an arithmetic number, because the mean of its divisors is an integer number (2727426345).

Almost surely, 2^49686364825 is an apocalyptic number.

It is an amenable number.

49686364825 is a deficient number, since it is larger than the sum of its proper divisors (15771867455).

49686364825 is a wasteful number, since it uses less digits than its factorization.

49686364825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852317 (or 1852312 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 61.

The spelling of 49686364825 in words is "forty-nine billion, six hundred eighty-six million, three hundred sixty-four thousand, eight hundred twenty-five".