64779264 has 220 divisors, whose sum is σ = 214001568. Its totient is φ = 19353600.

The previous prime is 64779263. The next prime is 64779269. The reversal of 64779264 is 46297746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64779263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 912349 + ... + 912419.

Almost surely, 2^64779264 is an apocalyptic number.

64779264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64779264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107000784).

64779264 is an abundant number, since it is smaller than the sum of its proper divisors (149222304).

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

64779264 is a wasteful number, since it uses less digits than its factorization.

64779264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 87 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 64779264 is about 8048.5566407897. The cubic root of 64779264 is about 401.6169217697.

The spelling of 64779264 in words is "sixty-four million, seven hundred seventy-nine thousand, two hundred sixty-four".