139193045568 has 224 divisors, whose sum is σ = 423915840000. Its totient is φ = 44733911040.

The previous prime is 139193045543. The next prime is 139193045569. The reversal of 139193045568 is 865540391931.

139193045568 is a `hidden beast` number, since 1 + 3 + 9 + 1 + 9 + 30 + 45 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (139193045569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45650508 + ... + 45653556.

Almost surely, 2^139193045568 is an apocalyptic number.

139193045568 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 139193045568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211957920000).

139193045568 is an abundant number, since it is smaller than the sum of its proper divisors (284722794432).

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

139193045568 is a wasteful number, since it uses less digits than its factorization.

139193045568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010 (or 3994 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 139193045568 in words is "one hundred thirty-nine billion, one hundred ninety-three million, forty-five thousand, five hundred sixty-eight".