64157268 has 36 divisors (see below), whose sum is σ = 174142752. Its totient is φ = 18330480.

The previous prime is 64157267. The next prime is 64157273. The reversal of 64157268 is 86275146.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64157267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53968 + ... + 55143.

Almost surely, 2^64157268 is an apocalyptic number.

It is an amenable number.

64157268 is an abundant number, since it is smaller than the sum of its proper divisors (109985484).

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

64157268 is a wasteful number, since it uses less digits than its factorization.

64157268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109132 (or 109123 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 64157268 is about 8009.8232190230. The cubic root of 64157268 is about 400.3273736598.

The spelling of 64157268 in words is "sixty-four million, one hundred fifty-seven thousand, two hundred sixty-eight".