139794014808 has 128 divisors (see below), whose sum is σ = 444613440000. Its totient is φ = 39867085440.

The previous prime is 139794014771. The next prime is 139794014839. The reversal of 139794014808 is 808410497931.

It is a super-2 number, since 2×139794014808² (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 31 ways as a sum of consecutive naturals, for example, 732543 + ... + 903441.

It is an arithmetic number, because the mean of its divisors is an integer number (3473542500).

Almost surely, 2^139794014808 is an apocalyptic number.

139794014808 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 139794014808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222306720000).

139794014808 is an abundant number, since it is smaller than the sum of its proper divisors (304819425192).

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

139794014808 is a wasteful number, since it uses less digits than its factorization.

139794014808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171462 (or 171452 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 139794014808 in words is "one hundred thirty-nine billion, seven hundred ninety-four million, fourteen thousand, eight hundred eight".