39599397442 has 64 divisors (see below), whose sum is σ = 67857326208. Its totient is φ = 17174080000.

The previous prime is 39599397391. The next prime is 39599397443. The reversal of 39599397442 is 24479399593.

It is a super-2 number, since 2×39599397442² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39599397443) 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, 7558848 + ... + 7564084.

It is an arithmetic number, because the mean of its divisors is an integer number (1060270722).

Almost surely, 2^39599397442 is an apocalyptic number.

39599397442 is a deficient number, since it is larger than the sum of its proper divisors (28257928766).

39599397442 is a wasteful number, since it uses less digits than its factorization.

39599397442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475.

The product of its digits is 66134880, while the sum is 64.

The spelling of 39599397442 in words is "thirty-nine billion, five hundred ninety-nine million, three hundred ninety-seven thousand, four hundred forty-two".