139863266928 has 720 divisors, whose sum is σ = 515702992896. Its totient is φ = 34594560000.

The previous prime is 139863266903. The next prime is 139863266941. The reversal of 139863266928 is 829662368931.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 268451308 + ... + 268451828.

Almost surely, 2^139863266928 is an apocalyptic number.

139863266928 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 139863266928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257851496448).

139863266928 is an abundant number, since it is smaller than the sum of its proper divisors (375839725968).

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

139863266928 is a wasteful number, since it uses less digits than its factorization.

139863266928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 646 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 63.

The spelling of 139863266928 in words is "one hundred thirty-nine billion, eight hundred sixty-three million, two hundred sixty-six thousand, nine hundred twenty-eight".