705657997513 has 8 divisors (see below), whose sum is σ = 834275465280. Its totient is φ = 583992825360.

The previous prime is 705657997483. The next prime is 705657997529. The reversal of 705657997513 is 315799756507.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-705657997513 is a prime.

It is a super-2 number, since 2×705657997513² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705657997553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738073683 + ... + 1738074088.

It is an arithmetic number, because the mean of its divisors is an integer number (104284433160).

Almost surely, 2^705657997513 is an apocalyptic number.

It is an amenable number.

705657997513 is a deficient number, since it is larger than the sum of its proper divisors (128617467767).

705657997513 is a wasteful number, since it uses less digits than its factorization.

705657997513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476147807.

The product of its (nonzero) digits is 62511750, while the sum is 64.

The spelling of 705657997513 in words is "seven hundred five billion, six hundred fifty-seven million, nine hundred ninety-seven thousand, five hundred thirteen".