139697036640 has 384 divisors, whose sum is σ = 560440581120. Its totient is φ = 31836340224.

The previous prime is 139697036629. The next prime is 139697036657. The reversal of 139697036640 is 46630796931.

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 63 ways as a sum of consecutive naturals, for example, 10486624 + ... + 10499936.

It is an arithmetic number, because the mean of its divisors is an integer number (1459480680).

Almost surely, 2^139697036640 is an apocalyptic number.

139697036640 is a gapful number since it is divisible by the number (10) 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 139697036640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280220290560).

139697036640 is an abundant number, since it is smaller than the sum of its proper divisors (420743544480).

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

139697036640 is a wasteful number, since it uses less digits than its factorization.

139697036640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13691 (or 13677 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The spelling of 139697036640 in words is "one hundred thirty-nine billion, six hundred ninety-seven million, thirty-six thousand, six hundred forty".