39968343541 has 16 divisors (see below), whose sum is σ = 47676029184. Its totient is φ = 32760883584.

The previous prime is 39968343511. The next prime is 39968343577. The reversal of 39968343541 is 14534386993.

39968343541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 39968343541 - 2³³ = 31378408949 is a prime.

It is a super-2 number, since 2×39968343541² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39968343511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 662931 + ... + 720703.

It is an arithmetic number, because the mean of its divisors is an integer number (2979751824).

Almost surely, 2^39968343541 is an apocalyptic number.

It is an amenable number.

39968343541 is a deficient number, since it is larger than the sum of its proper divisors (7707685643).

39968343541 is a wasteful number, since it uses less digits than its factorization.

39968343541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62100.

The product of its digits is 8398080, while the sum is 55.

The spelling of 39968343541 in words is "thirty-nine billion, nine hundred sixty-eight million, three hundred forty-three thousand, five hundred forty-one".