139637623993 has 8 divisors (see below), whose sum is σ = 159611799488. Its totient is φ = 119669934384.

The previous prime is 139637623981. The next prime is 139637624039. The reversal of 139637623993 is 399326736931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139637623993 - 2⁹ = 139637623481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139637623903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1575246 + ... + 1661527.

It is an arithmetic number, because the mean of its divisors is an integer number (19951474936).

Almost surely, 2^139637623993 is an apocalyptic number.

It is an amenable number.

139637623993 is a deficient number, since it is larger than the sum of its proper divisors (19974175495).

139637623993 is an equidigital number, since it uses as much as digits as its factorization.

139637623993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242943.

The product of its digits is 29760696, while the sum is 61.

The spelling of 139637623993 in words is "one hundred thirty-nine billion, six hundred thirty-seven million, six hundred twenty-three thousand, nine hundred ninety-three".