765546922040 has 128 divisors (see below), whose sum is σ = 1769953075200. Its totient is φ = 297899804160.

The previous prime is 765546922037. The next prime is 765546922043. The reversal of 765546922040 is 40229645567.

It is an interprime number because it is at equal distance from previous prime (765546922037) and next prime (765546922043).

It is a self number, because there is not a number n which added to its sum of digits gives 765546922040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765546922043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126179087 + ... + 126185153.

It is an arithmetic number, because the mean of its divisors is an integer number (13827758400).

Almost surely, 2^765546922040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 765546922040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884976537600).

765546922040 is an abundant number, since it is smaller than the sum of its proper divisors (1004406153160).

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

765546922040 is a wasteful number, since it uses less digits than its factorization.

765546922040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6685 (or 6681 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 765546922040 in words is "seven hundred sixty-five billion, five hundred forty-six million, nine hundred twenty-two thousand, forty".