139823711903840 has 96 divisors (see below), whose sum is σ = 331364497605120. Its totient is φ = 55754961292800.

The previous prime is 139823711903809. The next prime is 139823711903851. The reversal of 139823711903840 is 48309117328931.

It is a self number, because there is not a number n which added to its sum of digits gives 139823711903840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553782425 + ... + 554034855.

It is an arithmetic number, because the mean of its divisors is an integer number (3451713516720).

Almost surely, 2^{139823711903840} is an apocalyptic number.

139823711903840 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 139823711903840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165682248802560).

139823711903840 is an abundant number, since it is smaller than the sum of its proper divisors (191540785701280).

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

139823711903840 is a wasteful number, since it uses less digits than its factorization.

139823711903840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263236 (or 263228 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 139823711903840 in words is "one hundred thirty-nine trillion, eight hundred twenty-three billion, seven hundred eleven million, nine hundred three thousand, eight hundred forty".