39975742536 has 32 divisors (see below), whose sum is σ = 100491518400. Its totient is φ = 13251625920.

The previous prime is 39975742507. The next prime is 39975742537. The reversal of 39975742536 is 63524757993.

39975742536 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-3 number, since 3×39975742536³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 39975742536.

It is not an unprimeable number, because it can be changed into a prime (39975742537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4596916 + ... + 4605603.

It is an arithmetic number, because the mean of its divisors is an integer number (3140359950).

Almost surely, 2^39975742536 is an apocalyptic number.

It is an amenable number.

39975742536 is an abundant number, since it is smaller than the sum of its proper divisors (60515775864).

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

39975742536 is a wasteful number, since it uses less digits than its factorization.

39975742536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9202709 (or 9202705 counting only the distinct ones).

The product of its digits is 42865200, while the sum is 60.

The spelling of 39975742536 in words is "thirty-nine billion, nine hundred seventy-five million, seven hundred forty-two thousand, five hundred thirty-six".