64765418 has 4 divisors (see below), whose sum is σ = 97148130. Its totient is φ = 32382708.

The previous prime is 64765411. The next prime is 64765423. The reversal of 64765418 is 81456746.

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

It can be written as a sum of positive squares in only one way, i.e., 64048009 + 717409 = 8003^2 + 847^2 .

It is not an unprimeable number, because it can be changed into a prime (64765411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16191353 + ... + 16191356.

Almost surely, 2^64765418 is an apocalyptic number.

64765418 is a deficient number, since it is larger than the sum of its proper divisors (32382712).

64765418 is a wasteful number, since it uses less digits than its factorization.

64765418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32382711.

The product of its digits is 161280, while the sum is 41.

The square root of 64765418 is about 8047.6964405971. The cubic root of 64765418 is about 401.5883056983.

The spelling of 64765418 in words is "sixty-four million, seven hundred sixty-five thousand, four hundred eighteen".