78466493408 has 48 divisors (see below), whose sum is σ = 161830872000. Its totient is φ = 37400842752.

The previous prime is 78466493401. The next prime is 78466493419. The reversal of 78466493408 is 80439466487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78466493401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461843 + ... + 608466.

It is an arithmetic number, because the mean of its divisors is an integer number (3371476500).

Almost surely, 2^78466493408 is an apocalyptic number.

It is an amenable number.

78466493408 is an abundant number, since it is smaller than the sum of its proper divisors (83364378592).

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

78466493408 is a wasteful number, since it uses less digits than its factorization.

78466493408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070427 (or 1070419 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 59.

The spelling of 78466493408 in words is "seventy-eight billion, four hundred sixty-six million, four hundred ninety-three thousand, four hundred eight".