3900784726956 has 24 divisors (see below), whose sum is σ = 9801971878384. Its totient is φ = 1200241454400.

The previous prime is 3900784726931. The next prime is 3900784727029. The reversal of 3900784726956 is 6596274870093.

3900784726956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3900784726956² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12502514995 + ... + 12502515306.

Almost surely, 2^{3900784726956} is an apocalyptic number.

It is an amenable number.

3900784726956 is an abundant number, since it is smaller than the sum of its proper divisors (5901187151428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3900784726956 is a wasteful number, since it uses less digits than its factorization.

3900784726956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25005030321 (or 25005030319 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 66.

The spelling of 3900784726956 in words is "three trillion, nine hundred billion, seven hundred eighty-four million, seven hundred twenty-six thousand, nine hundred fifty-six".