1268516974 has 16 divisors (see below), whose sum is σ = 1923251616. Its totient is φ = 627444000.

The previous prime is 1268516959. The next prime is 1268516987. The reversal of 1268516974 is 4796158621.

It is a happy number.

It is a super-2 number, since 2×1268516974² = 3218270626652233352, which contains 22 as substring.

It is a congruent number.

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, 349879 + ... + 353485.

It is an arithmetic number, because the mean of its divisors is an integer number (120203226).

Almost surely, 2^1268516974 is an apocalyptic number.

1268516974 is a deficient number, since it is larger than the sum of its proper divisors (654734642).

1268516974 is a wasteful number, since it uses less digits than its factorization.

1268516974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5451.

The product of its digits is 725760, while the sum is 49.

The square root of 1268516974 is about 35616.2459279470. The cubic root of 1268516974 is about 1082.5104420052.

The spelling of 1268516974 in words is "one billion, two hundred sixty-eight million, five hundred sixteen thousand, nine hundred seventy-four".