34907903721 has 32 divisors (see below), whose sum is σ = 52404019200. Its totient is φ = 22962448080.

The previous prime is 34907903707. The next prime is 34907903743. The reversal of 34907903721 is 12730970943.

34907903721 is a `hidden beast` number, since 3 + 490 + 7 + 90 + 3 + 72 + 1 = 666.

It is not a de Polignac number, because 34907903721 - 2⁹ = 34907903209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34907903021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3986470 + ... + 3995216.

It is an arithmetic number, because the mean of its divisors is an integer number (1637625600).

Almost surely, 2^34907903721 is an apocalyptic number.

It is an amenable number.

34907903721 is a deficient number, since it is larger than the sum of its proper divisors (17496115479).

34907903721 is a wasteful number, since it uses less digits than its factorization.

34907903721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10706 (or 10700 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The spelling of 34907903721 in words is "thirty-four billion, nine hundred seven million, nine hundred three thousand, seven hundred twenty-one".