139887356428 has 12 divisors (see below), whose sum is σ = 246217920480. Its totient is φ = 69539379152.

The previous prime is 139887356419. The next prime is 139887356429. The reversal of 139887356428 is 824653788931.

It is a self number, because there is not a number n which added to its sum of digits gives 139887356428.

It is not an unprimeable number, because it can be changed into a prime (139887356429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101073988 + ... + 101075371.

It is an arithmetic number, because the mean of its divisors is an integer number (20518160040).

Almost surely, 2^139887356428 is an apocalyptic number.

It is an amenable number.

139887356428 is a deficient number, since it is larger than the sum of its proper divisors (106330564052).

139887356428 is a wasteful number, since it uses less digits than its factorization.

139887356428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202149536 (or 202149534 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 64.

The spelling of 139887356428 in words is "one hundred thirty-nine billion, eight hundred eighty-seven million, three hundred fifty-six thousand, four hundred twenty-eight".