780885868 has 24 divisors (see below), whose sum is σ = 1562400000. Its totient is φ = 334530768.

The previous prime is 780885841. The next prime is 780885869. The reversal of 780885868 is 868588087.

It is a super-2 number, since 2×780885868² = 1219565477684226848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (780885869) 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, 100383 + ... + 107881.

It is an arithmetic number, because the mean of its divisors is an integer number (65100000).

Almost surely, 2^780885868 is an apocalyptic number.

It is an amenable number.

780885868 is an abundant number, since it is smaller than the sum of its proper divisors (781514132).

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

780885868 is a wasteful number, since it uses less digits than its factorization.

780885868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11229 (or 11227 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 58.

The square root of 780885868 is about 27944.3351683306. The cubic root of 780885868 is about 920.8647618892.

The spelling of 780885868 in words is "seven hundred eighty million, eight hundred eighty-five thousand, eight hundred sixty-eight".