3925739729704 has 16 divisors (see below), whose sum is σ = 7926974454420. Its totient is φ = 1811879875200.

The previous prime is 3925739729693. The next prime is 3925739729729. The reversal of 3925739729704 is 4079279375293.

It can be written as a sum of positive squares in 2 ways, for example, as 3925541764804 + 197964900 = 1981298^2 + 14070^2 .

It is a super-2 number, since 2×3925739729704² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3925739729704.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18873748597 + ... + 18873748804.

Almost surely, 2^{3925739729704} is an apocalyptic number.

It is an amenable number.

3925739729704 is an abundant number, since it is smaller than the sum of its proper divisors (4001234724716).

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

3925739729704 is a wasteful number, since it uses less digits than its factorization.

3925739729704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37747497420 (or 37747497416 counting only the distinct ones).

The product of its (nonzero) digits is 180033840, while the sum is 67.

The spelling of 3925739729704 in words is "three trillion, nine hundred twenty-five billion, seven hundred thirty-nine million, seven hundred twenty-nine thousand, seven hundred four".