139675995648 has 960 divisors, whose sum is σ = 526206320640. Its totient is φ = 36064714752.

The previous prime is 139675995631. The next prime is 139675995653. The reversal of 139675995648 is 846599576931.

139675995648 is a `hidden beast` number, since 1 + 3 + 9 + 6 + 7 + 59 + 9 + 564 + 8 = 666.

It is a super-2 number, since 2×139675995648² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 380588361 + ... + 380588727.

It is an arithmetic number, because the mean of its divisors is an integer number (548131584).

Almost surely, 2^139675995648 is an apocalyptic number.

139675995648 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 139675995648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263103160320).

139675995648 is an abundant number, since it is smaller than the sum of its proper divisors (386530324992).

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

139675995648 is an equidigital number, since it uses as much as digits as its factorization.

139675995648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 421 counting only the distinct ones).

The product of its digits is 440899200, while the sum is 72.

The spelling of 139675995648 in words is "one hundred thirty-nine billion, six hundred seventy-five million, nine hundred ninety-five thousand, six hundred forty-eight".