64779080 has 32 divisors (see below), whose sum is σ = 146829240. Its totient is φ = 25720320.

The previous prime is 64779067. The next prime is 64779097. The reversal of 64779080 is 8097746.

It can be written as a sum of positive squares in 4 ways, for example, as 42745444 + 22033636 = 6538^2 + 4694^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431 + ... + 11390.

Almost surely, 2^64779080 is an apocalyptic number.

It is an amenable number.

64779080 is an abundant number, since it is smaller than the sum of its proper divisors (82050160).

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

64779080 is a wasteful number, since it uses less digits than its factorization.

64779080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11969 (or 11965 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 64779080 is about 8048.5452101607. The cubic root of 64779080 is about 401.6165415164.

The spelling of 64779080 in words is "sixty-four million, seven hundred seventy-nine thousand, eighty".