782401868 has 6 divisors (see below), whose sum is σ = 1369203276. Its totient is φ = 391200932.

The previous prime is 782401849. The next prime is 782401877. The reversal of 782401868 is 868104287.

It is a super-2 number, since 2×782401868² = 1224305366099778848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97800230 + ... + 97800237.

It is an arithmetic number, because the mean of its divisors is an integer number (228200546).

Almost surely, 2^782401868 is an apocalyptic number.

It is an amenable number.

782401868 is a deficient number, since it is larger than the sum of its proper divisors (586801408).

782401868 is a wasteful number, since it uses less digits than its factorization.

782401868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195600471 (or 195600469 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 782401868 is about 27971.4473704884. The cubic root of 782401868 is about 921.4602943045.

It can be divided in two parts, 78240 and 1868, that added together give a palindrome (80108).

The spelling of 782401868 in words is "seven hundred eighty-two million, four hundred one thousand, eight hundred sixty-eight".