64854518 has 4 divisors (see below), whose sum is σ = 97281780. Its totient is φ = 32427258.

The previous prime is 64854499. The next prime is 64854521. The reversal of 64854518 is 81545846.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×64854518² = 8412217010024648, 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 as a sum of consecutive naturals, namely, 16213628 + ... + 16213631.

It is an arithmetic number, because the mean of its divisors is an integer number (24320445).

Almost surely, 2^64854518 is an apocalyptic number.

64854518 is a deficient number, since it is larger than the sum of its proper divisors (32427262).

64854518 is a wasteful number, since it uses less digits than its factorization.

64854518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32427261.

The product of its digits is 153600, while the sum is 41.

The square root of 64854518 is about 8053.2302835570. The cubic root of 64854518 is about 401.7723808990.

The spelling of 64854518 in words is "sixty-four million, eight hundred fifty-four thousand, five hundred eighteen".