78004522464 has 48 divisors (see below), whose sum is σ = 223376590080. Its totient is φ = 23637733760.

The previous prime is 78004522459. The next prime is 78004522487. The reversal of 78004522464 is 46422540087.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 36932904 + ... + 36935015.

It is an arithmetic number, because the mean of its divisors is an integer number (4653678960).

Almost surely, 2^78004522464 is an apocalyptic number.

It is an amenable number.

78004522464 is an abundant number, since it is smaller than the sum of its proper divisors (145372067616).

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

78004522464 is a wasteful number, since it uses less digits than its factorization.

78004522464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73867943 (or 73867935 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 42.

The spelling of 78004522464 in words is "seventy-eight billion, four million, five hundred twenty-two thousand, four hundred sixty-four".