139005179904 has 96 divisors (see below), whose sum is σ = 371326410000. Its totient is φ = 46242988032.

The previous prime is 139005179899. The next prime is 139005179909. The reversal of 139005179904 is 409971500931.

It is an interprime number because it is at equal distance from previous prime (139005179899) and next prime (139005179909).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139005179909) 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, 3105072 + ... + 3149520.

Almost surely, 2^139005179904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139005179904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185663205000).

139005179904 is an abundant number, since it is smaller than the sum of its proper divisors (232321230096).

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

139005179904 is an equidigital number, since it uses as much as digits as its factorization.

139005179904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44983 (or 44963 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 48.

The spelling of 139005179904 in words is "one hundred thirty-nine billion, five million, one hundred seventy-nine thousand, nine hundred four".