139393044648 has 384 divisors, whose sum is σ = 463134672000. Its totient is φ = 37292451840.

The previous prime is 139393044631. The next prime is 139393044653. The reversal of 139393044648 is 846440393931.

It is a happy number.

139393044648 is a `hidden beast` number, since 1 + 3 + 93 + 93 + 0 + 4 + 464 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 139393044594 and 139393044603.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32543515 + ... + 32547797.

It is an arithmetic number, because the mean of its divisors is an integer number (1206079875).

Almost surely, 2^139393044648 is an apocalyptic number.

139393044648 is a gapful number since it is divisible by the number (18) 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 139393044648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231567336000).

139393044648 is an abundant number, since it is smaller than the sum of its proper divisors (323741627352).

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

139393044648 is a wasteful number, since it uses less digits than its factorization.

139393044648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457 (or 4450 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 139393044648 in words is "one hundred thirty-nine billion, three hundred ninety-three million, forty-four thousand, six hundred forty-eight".