39721838034 has 16 divisors (see below), whose sum is σ = 82006375680. Its totient is φ = 12813496080.

The previous prime is 39721838021. The next prime is 39721838081. The reversal of 39721838034 is 43083812793.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106778949 + ... + 106779320.

It is an arithmetic number, because the mean of its divisors is an integer number (5125398480).

Almost surely, 2^39721838034 is an apocalyptic number.

39721838034 is an abundant number, since it is smaller than the sum of its proper divisors (42284537646).

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

39721838034 is a wasteful number, since it uses less digits than its factorization.

39721838034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213558305.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 39721838034 in words is "thirty-nine billion, seven hundred twenty-one million, eight hundred thirty-eight thousand, thirty-four".