139139481600 has 684 divisors, whose sum is σ = 571321835344. Its totient is φ = 31708938240.

The previous prime is 139139481541. The next prime is 139139481629. The reversal of 139139481600 is 6184931931.

139139481600 is a `hidden beast` number, since 1 + 3 + 9 + 1 + 39 + 4 + 8 + 1 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 412876632 + ... + 412876968.

Almost surely, 2^139139481600 is an apocalyptic number.

139139481600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139139481600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285660917672).

139139481600 is an abundant number, since it is smaller than the sum of its proper divisors (432182353744).

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

139139481600 is an frugal number, since it uses more digits than its factorization.

139139481600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 139139481600 in words is "one hundred thirty-nine billion, one hundred thirty-nine million, four hundred eighty-one thousand, six hundred".