139492040688 has 1440 divisors, whose sum is σ = 580867822080. Its totient is φ = 30083788800.

The previous prime is 139492040663. The next prime is 139492040717. The reversal of 139492040688 is 886040294931.

139492040688 is a `hidden beast` number, since 1 + 39 + 492 + 0 + 40 + 6 + 88 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2631925270 + ... + 2631925322.

It is an arithmetic number, because the mean of its divisors is an integer number (403380432).

Almost surely, 2^139492040688 is an apocalyptic number.

139492040688 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 139492040688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290433911040).

139492040688 is an abundant number, since it is smaller than the sum of its proper divisors (441375781392).

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

139492040688 is a wasteful number, since it uses less digits than its factorization.

139492040688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 139492040688 in words is "one hundred thirty-nine billion, four hundred ninety-two million, forty thousand, six hundred eighty-eight".