139900817628 has 120 divisors (see below), whose sum is σ = 429667040880. Its totient is φ = 39133082880.

The previous prime is 139900817599. The next prime is 139900817653. The reversal of 139900817628 is 826718009931.

139900817628 is a `hidden beast` number, since 1 + 3 + 9 + 9 + 0 + 0 + 8 + 1 + 7 + 628 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1463433 + ... + 1556096.

It is an arithmetic number, because the mean of its divisors is an integer number (3580558674).

Almost surely, 2^139900817628 is an apocalyptic number.

139900817628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

139900817628 is an abundant number, since it is smaller than the sum of its proper divisors (289766223252).

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

139900817628 is a wasteful number, since it uses less digits than its factorization.

139900817628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019569 (or 3019558 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 139900817628 in words is "one hundred thirty-nine billion, nine hundred million, eight hundred seventeen thousand, six hundred twenty-eight".