768081513 has 16 divisors (see below), whose sum is σ = 1061830656. Its totient is φ = 493339920.

The previous prime is 768081497. The next prime is 768081541. The reversal of 768081513 is 315180867.

It is not a de Polignac number, because 768081513 - 2⁴ = 768081497 is a prime.

It is a super-2 number, since 2×768081513² = 1179898421224738338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (768081553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2920 + ... + 39302.

It is an arithmetic number, because the mean of its divisors is an integer number (66364416).

Almost surely, 2^768081513 is an apocalyptic number.

It is an amenable number.

768081513 is a deficient number, since it is larger than the sum of its proper divisors (293749143).

768081513 is a wasteful number, since it uses less digits than its factorization.

768081513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36644.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 768081513 is about 27714.2835555964. The cubic root of 768081513 is about 915.8037918868.

The spelling of 768081513 in words is "seven hundred sixty-eight million, eighty-one thousand, five hundred thirteen".