139434983688 has 1152 divisors, whose sum is σ = 536225356800. Its totient is φ = 29611008000.

The previous prime is 139434983641. The next prime is 139434983711. The reversal of 139434983688 is 886389434931.

It is a super-2 number, since 2×139434983688² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

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, 923410413 + ... + 923410563.

It is an arithmetic number, because the mean of its divisors is an integer number (465473400).

Almost surely, 2^139434983688 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 139434983688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268112678400).

139434983688 is an abundant number, since it is smaller than the sum of its proper divisors (396790373112).

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

139434983688 is a wasteful number, since it uses less digits than its factorization.

139434983688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 223 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 66.

The spelling of 139434983688 in words is "one hundred thirty-nine billion, four hundred thirty-four million, nine hundred eighty-three thousand, six hundred eighty-eight".