39980255418544 has 20 divisors (see below), whose sum is σ = 88527708427024. Its totient is φ = 17134395179328.

The previous prime is 39980255418541. The next prime is 39980255418557. The reversal of 39980255418544 is 44581455208993.

It is a self number, because there is not a number n which added to its sum of digits gives 39980255418544.

It is not an unprimeable number, because it can be changed into a prime (39980255418541) 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, 178483283007 + ... + 178483283230.

Almost surely, 2^{39980255418544} is an apocalyptic number.

It is an amenable number.

39980255418544 is an abundant number, since it is smaller than the sum of its proper divisors (48547453008480).

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

39980255418544 is a wasteful number, since it uses less digits than its factorization.

39980255418544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356966566252 (or 356966566246 counting only the distinct ones).

The product of its (nonzero) digits is 248832000, while the sum is 67.

The spelling of 39980255418544 in words is "thirty-nine trillion, nine hundred eighty billion, two hundred fifty-five million, four hundred eighteen thousand, five hundred forty-four".