39254921961 has 32 divisors (see below), whose sum is σ = 55006826112. Its totient is φ = 24878039040.

The previous prime is 39254921929. The next prime is 39254921977. The reversal of 39254921961 is 16912945293.

It is not a de Polignac number, because 39254921961 - 2⁵ = 39254921929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39254921921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 718921 + ... + 771593.

It is an arithmetic number, because the mean of its divisors is an integer number (1718963316).

Almost surely, 2^39254921961 is an apocalyptic number.

It is an amenable number.

39254921961 is a deficient number, since it is larger than the sum of its proper divisors (15751904151).

39254921961 is a wasteful number, since it uses less digits than its factorization.

39254921961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52873.

The product of its digits is 1049760, while the sum is 51.

The spelling of 39254921961 in words is "thirty-nine billion, two hundred fifty-four million, nine hundred twenty-one thousand, nine hundred sixty-one".