715832138440 has 16 divisors (see below), whose sum is σ = 1610622311580. Its totient is φ = 286332855360.

The previous prime is 715832138423. The next prime is 715832138449. The reversal of 715832138440 is 44831238517.

It can be written as a sum of positive squares in 2 ways, for example, as 713190384036 + 2641754404 = 844506^2 + 51398^2 .

It is not an unprimeable number, because it can be changed into a prime (715832138449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8947901691 + ... + 8947901770.

Almost surely, 2^715832138440 is an apocalyptic number.

It is an amenable number.

715832138440 is an abundant number, since it is smaller than the sum of its proper divisors (894790173140).

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

715832138440 is a wasteful number, since it uses less digits than its factorization.

715832138440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17895803472 (or 17895803468 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 715832138440 in words is "seven hundred fifteen billion, eight hundred thirty-two million, one hundred thirty-eight thousand, four hundred forty".