78472994800 has 60 divisors (see below), whose sum is σ = 188915817096. Its totient is φ = 31325190400.

The previous prime is 78472994783. The next prime is 78472994813. The reversal of 78472994800 is 849927487.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3379 + ... + 396178.

Almost surely, 2^78472994800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78472994800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94457908548).

78472994800 is an abundant number, since it is smaller than the sum of its proper divisors (110442822296).

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

78472994800 is a wasteful number, since it uses less digits than its factorization.

78472994800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400066 (or 400055 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 58.

The spelling of 78472994800 in words is "seventy-eight billion, four hundred seventy-two million, nine hundred ninety-four thousand, eight hundred".