11257434468 has 72 divisors (see below), whose sum is σ = 32690123648. Its totient is φ = 3199730688.

The previous prime is 11257434451. The next prime is 11257434491. The reversal of 11257434468 is 86443475211.

11257434468 is a `hidden beast` number, since 1 + 1 + 2 + 574 + 34 + 46 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67096 + ... + 164367.

Almost surely, 2^11257434468 is an apocalyptic number.

11257434468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11257434468 is an abundant number, since it is smaller than the sum of its proper divisors (21432689180).

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

11257434468 is a wasteful number, since it uses less digits than its factorization.

11257434468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231673 (or 231668 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 11257434468 in words is "eleven billion, two hundred fifty-seven million, four hundred thirty-four thousand, four hundred sixty-eight".