139693237632 has 640 divisors, whose sum is σ = 469983360000. Its totient is φ = 40893050880.

The previous prime is 139693237603. The next prime is 139693237669. The reversal of 139693237632 is 236732396931.

It is a super-2 number, since 2×139693237632² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 279946119 + ... + 279946617.

It is an arithmetic number, because the mean of its divisors is an integer number (734349000).

Almost surely, 2^139693237632 is an apocalyptic number.

139693237632 is a gapful number since it is divisible by the number (12) 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 139693237632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234991680000).

139693237632 is an abundant number, since it is smaller than the sum of its proper divisors (330290122368).

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

139693237632 is a wasteful number, since it uses less digits than its factorization.

139693237632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 615 counting only the distinct ones).

The product of its digits is 6613488, while the sum is 54.

The spelling of 139693237632 in words is "one hundred thirty-nine billion, six hundred ninety-three million, two hundred thirty-seven thousand, six hundred thirty-two".