139840762356240 has 80 divisors (see below), whose sum is σ = 472916032704576. Its totient is φ = 33900790873600.

The previous prime is 139840762356181. The next prime is 139840762356349. The reversal of 139840762356240 is 42653267048931.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 26484990231 + ... + 26484995510.

It is a 1-persistent number, because it is pandigital, but 2⋅139840762356240 = 279681524712480 is not.

Almost surely, 2^{139840762356240} is an apocalyptic number.

139840762356240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139840762356240 is an abundant number, since it is smaller than the sum of its proper divisors (333075270348336).

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

139840762356240 is a wasteful number, since it uses less digits than its factorization.

139840762356240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52969985768 (or 52969985762 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 60.

The spelling of 139840762356240 in words is "one hundred thirty-nine trillion, eight hundred forty billion, seven hundred sixty-two million, three hundred fifty-six thousand, two hundred forty".