715324621261 has 4 divisors (see below), whose sum is σ = 715326982300. Its totient is φ = 715322260224.

The previous prime is 715324621229. The next prime is 715324621327. The reversal of 715324621261 is 162126423517.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105223033161 + 610101588100 = 324381^2 + 781090^2 .

It is a cyclic number.

It is not a de Polignac number, because 715324621261 - 2⁵ = 715324621229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715324628261) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 645126 + ... + 1358983.

It is an arithmetic number, because the mean of its divisors is an integer number (178831745575).

Almost surely, 2^715324621261 is an apocalyptic number.

It is an amenable number.

715324621261 is a deficient number, since it is larger than the sum of its proper divisors (2361039).

715324621261 is a wasteful number, since it uses less digits than its factorization.

715324621261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361038.

The product of its digits is 120960, while the sum is 40.

The spelling of 715324621261 in words is "seven hundred fifteen billion, three hundred twenty-four million, six hundred twenty-one thousand, two hundred sixty-one".