765112638 has 24 divisors (see below), whose sum is σ = 1544536728. Its totient is φ = 252674208.

The previous prime is 765112637. The next prime is 765112639. The reversal of 765112638 is 836211567.

It is an interprime number because it is at equal distance from previous prime (765112637) and next prime (765112639).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 765112596 and 765112605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765112633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65920 + ... + 76652.

It is an arithmetic number, because the mean of its divisors is an integer number (64355697).

Almost surely, 2^765112638 is an apocalyptic number.

765112638 is an abundant number, since it is smaller than the sum of its proper divisors (779424090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

765112638 is a wasteful number, since it uses less digits than its factorization.

765112638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10956 (or 10847 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 765112638 is about 27660.6695146737. The cubic root of 765112638 is about 914.6223123952.

The spelling of 765112638 in words is "seven hundred sixty-five million, one hundred twelve thousand, six hundred thirty-eight".