761745813 has 8 divisors (see below), whose sum is σ = 1050684000. Its totient is φ = 490319088.

The previous prime is 761745793. The next prime is 761745821. The reversal of 761745813 is 318547167.

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

It is not a de Polignac number, because 761745813 - 2²⁰ = 760697237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761745883) 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, 4377763 + ... + 4377936.

It is an arithmetic number, because the mean of its divisors is an integer number (131335500).

Almost surely, 2^761745813 is an apocalyptic number.

It is an amenable number.

761745813 is a deficient number, since it is larger than the sum of its proper divisors (288938187).

761745813 is a wasteful number, since it uses less digits than its factorization.

761745813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8755731.

The product of its digits is 141120, while the sum is 42.

The square root of 761745813 is about 27599.7429879338. The cubic root of 761745813 is about 913.2787624199.

The spelling of 761745813 in words is "seven hundred sixty-one million, seven hundred forty-five thousand, eight hundred thirteen".