139939994880 has 864 divisors, whose sum is σ = 572424652800. Its totient is φ = 30904270848.

The previous prime is 139939994861. The next prime is 139939994911. The reversal of 139939994880 is 88499939931.

139939994880 is a `hidden beast` number, since 1 + 399 + 39 + 99 + 48 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 139939994799 and 139939994808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 318769701 + ... + 318770139.

Almost surely, 2^139939994880 is an apocalyptic number.

139939994880 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 139939994880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286212326400).

139939994880 is an abundant number, since it is smaller than the sum of its proper divisors (432484657920).

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

139939994880 is a wasteful number, since it uses less digits than its factorization.

139939994880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 136048896, while the sum is 72.

The spelling of 139939994880 in words is "one hundred thirty-nine billion, nine hundred thirty-nine million, nine hundred ninety-four thousand, eight hundred eighty".