9925191044 has 36 divisors (see below), whose sum is σ = 18408700800. Its totient is φ = 4681572336.

The previous prime is 9925191013. The next prime is 9925191053. The reversal of 9925191044 is 4401915299.

It is a junction number, because it is equal to n+sod(n) for n = 9925190986 and 9925191004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330737 + ... + 359495.

It is an arithmetic number, because the mean of its divisors is an integer number (511352800).

Almost surely, 2^9925191044 is an apocalyptic number.

It is an amenable number.

9925191044 is a deficient number, since it is larger than the sum of its proper divisors (8483509756).

9925191044 is a wasteful number, since it uses less digits than its factorization.

9925191044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29040 (or 29019 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 9925191044 is about 99625.2530435933. The cubic root of 9925191044 is about 2149.0488703720.

The spelling of 9925191044 in words is "nine billion, nine hundred twenty-five million, one hundred ninety-one thousand, forty-four".