77851064 has 16 divisors (see below), whose sum is σ = 148725720. Its totient is φ = 38190880.

The previous prime is 77851057. The next prime is 77851091. The reversal of 77851064 is 46015877.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91382 + ... + 92229.

Almost surely, 2^77851064 is an apocalyptic number.

It is an amenable number.

77851064 is a deficient number, since it is larger than the sum of its proper divisors (70874656).

77851064 is a wasteful number, since it uses less digits than its factorization.

77851064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183670 (or 183666 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 77851064 is about 8823.3249968478. The cubic root of 77851064 is about 426.9937493029.

The spelling of 77851064 in words is "seventy-seven million, eight hundred fifty-one thousand, sixty-four".