1251268968 has 32 divisors (see below), whose sum is σ = 3194732160. Its totient is φ = 408215040.

The previous prime is 1251268961. The next prime is 1251268973. The reversal of 1251268968 is 8698621521.

It is not an unprimeable number, because it can be changed into a prime (1251268961) 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, 553513 + ... + 555768.

It is an arithmetic number, because the mean of its divisors is an integer number (99835380).

Almost surely, 2^1251268968 is an apocalyptic number.

It is an amenable number.

1251268968 is an abundant number, since it is smaller than the sum of its proper divisors (1943463192).

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

1251268968 is a wasteful number, since it uses less digits than its factorization.

1251268968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109337 (or 1109333 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The square root of 1251268968 is about 35373.2804246369. The cubic root of 1251268968 is about 1077.5817428919.

The spelling of 1251268968 in words is "one billion, two hundred fifty-one million, two hundred sixty-eight thousand, nine hundred sixty-eight".