139493975040 has 1232 divisors, whose sum is σ = 605701077120. Its totient is φ = 30098718720.

The previous prime is 139493975039. The next prime is 139493975053. The reversal of 139493975040 is 40579394931.

It is a happy number.

139493975040 is a `hidden beast` number, since 1 + 3 + 9 + 49 + 3 + 97 + 504 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 496419700 + ... + 496419980.

Almost surely, 2^139493975040 is an apocalyptic number.

139493975040 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 139493975040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302850538560).

139493975040 is an abundant number, since it is smaller than the sum of its proper divisors (466207102080).

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

139493975040 is an equidigital number, since it uses as much as digits as its factorization.

139493975040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 139493975040 in words is "one hundred thirty-nine billion, four hundred ninety-three million, nine hundred seventy-five thousand, forty".