777242568 has 32 divisors (see below), whose sum is σ = 1944446400. Its totient is φ = 258902208.

The previous prime is 777242561. The next prime is 777242573. The reversal of 777242568 is 865242777.

It is a super-2 number, since 2×777242568² = 1208212019022469248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (777242561) 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, 27030 + ... + 47802.

It is an arithmetic number, because the mean of its divisors is an integer number (60763950).

Almost surely, 2^777242568 is an apocalyptic number.

It is an amenable number.

777242568 is an abundant number, since it is smaller than the sum of its proper divisors (1167203832).

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

777242568 is a wasteful number, since it uses less digits than its factorization.

777242568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22341 (or 22337 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 48.

The square root of 777242568 is about 27879.0704292665. The cubic root of 777242568 is about 919.4304004097.

The spelling of 777242568 in words is "seven hundred seventy-seven million, two hundred forty-two thousand, five hundred sixty-eight".