39001331621 has 16 divisors (see below), whose sum is σ = 45474324480. Its totient is φ = 32757330480.

The previous prime is 39001331581. The next prime is 39001331627. The reversal of 39001331621 is 12613310093.

It is not a de Polignac number, because 39001331621 - 2⁶ = 39001331557 is a prime.

It is a super-2 number, since 2×39001331621² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39001331627) 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, 23381 + ... + 280266.

It is an arithmetic number, because the mean of its divisors is an integer number (2842145280).

Almost surely, 2^39001331621 is an apocalyptic number.

It is an amenable number.

39001331621 is a deficient number, since it is larger than the sum of its proper divisors (6472992859).

39001331621 is a wasteful number, since it uses less digits than its factorization.

39001331621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304024.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 39001331621 in words is "thirty-nine billion, one million, three hundred thirty-one thousand, six hundred twenty-one".