756945013 has 8 divisors (see below), whose sum is σ = 826679520. Its totient is φ = 687364080.

The previous prime is 756944999. The next prime is 756945023. The reversal of 756945013 is 310549657.

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

It is a cyclic number.

It is not a de Polignac number, because 756945013 - 2²⁵ = 723390581 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 (756945023) 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, 27958 + ... + 47911.

It is an arithmetic number, because the mean of its divisors is an integer number (103334940).

Almost surely, 2^756945013 is an apocalyptic number.

It is an amenable number.

756945013 is a deficient number, since it is larger than the sum of its proper divisors (69734507).

756945013 is a wasteful number, since it uses less digits than its factorization.

756945013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76787.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 756945013 is about 27512.6336979941. The cubic root of 756945013 is about 911.3561123555.

The spelling of 756945013 in words is "seven hundred fifty-six million, nine hundred forty-five thousand, thirteen".