15649633047 has 16 divisors (see below), whose sum is σ = 21476448000. Its totient is φ = 10130366400.

The previous prime is 15649633009. The next prime is 15649633049. The reversal of 15649633047 is 74033694651.

It is a de Polignac number, because none of the positive numbers 2^k-15649633047 is a prime.

It is a super-2 number, since 2×15649633047² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15649632987 and 15649633005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15649633049) 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, 275547 + ... + 327452.

It is an arithmetic number, because the mean of its divisors is an integer number (1342278000).

Almost surely, 2^15649633047 is an apocalyptic number.

15649633047 is a deficient number, since it is larger than the sum of its proper divisors (5826814953).

15649633047 is a wasteful number, since it uses less digits than its factorization.

15649633047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603254.

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 15649633047 in words is "fifteen billion, six hundred forty-nine million, six hundred thirty-three thousand, forty-seven".