39902981129 has 8 divisors (see below), whose sum is σ = 45423156672. Its totient is φ = 34698244240.

The previous prime is 39902981117. The next prime is 39902981137. The reversal of 39902981129 is 92118920993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39902981129 - 2²⁸ = 39634545673 is a prime.

It is a super-2 number, since 2×39902981129² (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 (39902983129) 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, 78859394 + ... + 78859899.

It is an arithmetic number, because the mean of its divisors is an integer number (5677894584).

Almost surely, 2^39902981129 is an apocalyptic number.

It is an amenable number.

39902981129 is a deficient number, since it is larger than the sum of its proper divisors (5520175543).

39902981129 is a wasteful number, since it uses less digits than its factorization.

39902981129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157719327.

The product of its (nonzero) digits is 629856, while the sum is 53.

The spelling of 39902981129 in words is "thirty-nine billion, nine hundred two million, nine hundred eighty-one thousand, one hundred twenty-nine".