78132064 has 24 divisors (see below), whose sum is σ = 154526400. Its totient is φ = 38887296.

The previous prime is 78132053. The next prime is 78132073. The reversal of 78132064 is 46023187.

It is a super-2 number, since 2×78132064² = 12209238849800192, 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 in 3 ways as a sum of consecutive naturals, for example, 1662 + ... + 12610.

It is an arithmetic number, because the mean of its divisors is an integer number (6438600).

Almost surely, 2^78132064 is an apocalyptic number.

It is an amenable number.

78132064 is a deficient number, since it is larger than the sum of its proper divisors (76394336).

78132064 is a wasteful number, since it uses less digits than its factorization.

78132064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11182 (or 11174 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 78132064 is about 8839.2343559836. The cubic root of 78132064 is about 427.5068708356.

The spelling of 78132064 in words is "seventy-eight million, one hundred thirty-two thousand, sixty-four".