120907817925 has 12 divisors (see below), whose sum is σ = 199900925760. Its totient is φ = 64484169520.

The previous prime is 120907817903. The next prime is 120907817939. The reversal of 120907817925 is 529718709021.

It is not a de Polignac number, because 120907817925 - 2¹⁰ = 120907816901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 806052045 + ... + 806052194.

It is an arithmetic number, because the mean of its divisors is an integer number (16658410480).

Almost surely, 2^120907817925 is an apocalyptic number.

120907817925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120907817925 is a deficient number, since it is larger than the sum of its proper divisors (78993107835).

120907817925 is a wasteful number, since it uses less digits than its factorization.

120907817925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612104252 (or 1612104247 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 51.

The spelling of 120907817925 in words is "one hundred twenty billion, nine hundred seven million, eight hundred seventeen thousand, nine hundred twenty-five".