64518274 has 8 divisors (see below), whose sum is σ = 97337340. Its totient is φ = 32072496.

The previous prime is 64518271. The next prime is 64518283. The reversal of 64518274 is 47281546.

It can be written as a sum of positive squares in 2 ways, for example, as 64400625 + 117649 = 8025^2 + 343^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (64518271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92889 + ... + 93580.

Almost surely, 2^64518274 is an apocalyptic number.

64518274 is a deficient number, since it is larger than the sum of its proper divisors (32819066).

64518274 is a wasteful number, since it uses less digits than its factorization.

64518274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186644.

The product of its digits is 53760, while the sum is 37.

The square root of 64518274 is about 8032.3268110803. The cubic root of 64518274 is about 401.0768359594.

The spelling of 64518274 in words is "sixty-four million, five hundred eighteen thousand, two hundred seventy-four".