1268516972 has 6 divisors (see below), whose sum is σ = 2219904708. Its totient is φ = 634258484.

The previous prime is 1268516959. The next prime is 1268516987. The reversal of 1268516972 is 2796158621.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158564618 + ... + 158564625.

It is an arithmetic number, because the mean of its divisors is an integer number (369984118).

Almost surely, 2^1268516972 is an apocalyptic number.

It is an amenable number.

1268516972 is a deficient number, since it is larger than the sum of its proper divisors (951387736).

1268516972 is a wasteful number, since it uses less digits than its factorization.

1268516972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317129247 (or 317129245 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 1268516972 is about 35616.2458998699. The cubic root of 1268516972 is about 1082.5104414363.

The spelling of 1268516972 in words is "one billion, two hundred sixty-eight million, five hundred sixteen thousand, nine hundred seventy-two".