39932371081 has 4 divisors (see below), whose sum is σ = 41668561152. Its totient is φ = 38196181012.

The previous prime is 39932371067. The next prime is 39932371097. The reversal of 39932371081 is 18017323993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39932371081 - 2¹³ = 39932362889 is a prime.

It is a super-2 number, since 2×39932371081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39932371021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868095001 + ... + 868095046.

It is an arithmetic number, because the mean of its divisors is an integer number (10417140288).

Almost surely, 2^39932371081 is an apocalyptic number.

It is an amenable number.

39932371081 is a deficient number, since it is larger than the sum of its proper divisors (1736190071).

39932371081 is a wasteful number, since it uses less digits than its factorization.

39932371081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736190070.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 39932371081 in words is "thirty-nine billion, nine hundred thirty-two million, three hundred seventy-one thousand, eighty-one".