1264822568 has 32 divisors (see below), whose sum is σ = 2451106560. Its totient is φ = 611245440.

The previous prime is 1264822567. The next prime is 1264822579. The reversal of 1264822568 is 8652284621.

It is a super-2 number, since 2×1264822568² = 3199552257044229248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1264822567) 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, 229655 + ... + 235097.

It is an arithmetic number, because the mean of its divisors is an integer number (76597080).

Almost surely, 2^1264822568 is an apocalyptic number.

It is an amenable number.

1264822568 is a deficient number, since it is larger than the sum of its proper divisors (1186283992).

1264822568 is a wasteful number, since it uses less digits than its factorization.

1264822568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6417 (or 6413 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 1264822568 is about 35564.3440541225. The cubic root of 1264822568 is about 1081.4585255076.

The spelling of 1264822568 in words is "one billion, two hundred sixty-four million, eight hundred twenty-two thousand, five hundred sixty-eight".