765580378 has 16 divisors (see below), whose sum is σ = 1170181800. Its totient is φ = 375552000.

The previous prime is 765580351. The next prime is 765580381. The reversal of 765580378 is 873085567.

765580378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 567249489 + 198330889 = 23817^2 + 14083^2 .

It is a super-2 number, since 2×765580378² = 1172226630357245768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41098 + ... + 56746.

Almost surely, 2^765580378 is an apocalyptic number.

765580378 is a deficient number, since it is larger than the sum of its proper divisors (404601422).

765580378 is a wasteful number, since it uses less digits than its factorization.

765580378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16113.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 765580378 is about 27669.1231881316. The cubic root of 765580378 is about 914.8086545847.

The spelling of 765580378 in words is "seven hundred sixty-five million, five hundred eighty thousand, three hundred seventy-eight".