39413986425 has 252 divisors, whose sum is σ = 82143370092. Its totient is φ = 18732384000.

The previous prime is 39413986397. The next prime is 39413986487. The reversal of 39413986425 is 52468931493.

39413986425 is a `hidden beast` number, since 3 + 9 + 4 + 139 + 86 + 425 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1106493696 + 38307492729 = 33264^2 + 195723^2 .

It is not a de Polignac number, because 39413986425 - 2⁸ = 39413986169 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 251 ways as a sum of consecutive naturals, for example, 134518579 + ... + 134518871.

Almost surely, 2^39413986425 is an apocalyptic number.

It is an amenable number.

39413986425 is an abundant number, since it is smaller than the sum of its proper divisors (42729383667).

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

39413986425 is a wasteful number, since it uses less digits than its factorization.

39413986425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 373 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 39413986425 in words is "thirty-nine billion, four hundred thirteen million, nine hundred eighty-six thousand, four hundred twenty-five".