139493744262 has 48 divisors (see below), whose sum is σ = 312320141952. Its totient is φ = 44949790080.

The previous prime is 139493744251. The next prime is 139493744279. The reversal of 139493744262 is 262447394931.

139493744262 is a `hidden beast` number, since 1 + 3 + 9 + 4 + 9 + 374 + 4 + 262 = 666.

139493744262 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139493744199 and 139493744208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 389448 + ... + 656244.

It is an arithmetic number, because the mean of its divisors is an integer number (6506669624).

Almost surely, 2^139493744262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139493744262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156160070976).

139493744262 is an abundant number, since it is smaller than the sum of its proper divisors (172826397690).

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

139493744262 is a wasteful number, since it uses less digits than its factorization.

139493744262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267773 (or 267770 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The spelling of 139493744262 in words is "one hundred thirty-nine billion, four hundred ninety-three million, seven hundred forty-four thousand, two hundred sixty-two".