139313869920 has 240 divisors, whose sum is σ = 503097875280. Its totient is φ = 36286258176.

The previous prime is 139313869873. The next prime is 139313869943. The reversal of 139313869920 is 29968313931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

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, 432286 + ... + 682274.

It is an arithmetic number, because the mean of its divisors is an integer number (2096241147).

Almost surely, 2^139313869920 is an apocalyptic number.

139313869920 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 139313869920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251548937640).

139313869920 is an abundant number, since it is smaller than the sum of its proper divisors (363784005360).

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

139313869920 is a wasteful number, since it uses less digits than its factorization.

139313869920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250059 (or 250042 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The spelling of 139313869920 in words is "one hundred thirty-nine billion, three hundred thirteen million, eight hundred sixty-nine thousand, nine hundred twenty".