139088718916 has 81 divisors (see below), whose sum is σ = 300972283101. Its totient is φ = 56067209856.

The previous prime is 139088718893. The next prime is 139088718917. The reversal of 139088718916 is 619817880931.

The square root of 139088718916 is 372946.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 108287064900 + 30801654016 = 329070^2 + 175504^2 .

It is not an unprimeable number, because it can be changed into a prime (139088718917) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 88760365 + ... + 88761931.

Almost surely, 2^139088718916 is an apocalyptic number.

139088718916 is the 372946-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139088718916

139088718916 is an abundant number, since it is smaller than the sum of its proper divisors (161883564185).

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

139088718916 is an equidigital number, since it uses as much as digits as its factorization.

139088718916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186 (or 1593 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 61.

The spelling of 139088718916 in words is "one hundred thirty-nine billion, eighty-eight million, seven hundred eighteen thousand, nine hundred sixteen".