78455462780 has 48 divisors (see below), whose sum is σ = 170101451520. Its totient is φ = 30364454400.

The previous prime is 78455462773. The next prime is 78455462807. The reversal of 78455462780 is 8726455487.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6745370 + ... + 6756990.

It is an arithmetic number, because the mean of its divisors is an integer number (3543780240).

Almost surely, 2^78455462780 is an apocalyptic number.

It is an amenable number.

78455462780 is an abundant number, since it is smaller than the sum of its proper divisors (91645988740).

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

78455462780 is a wasteful number, since it uses less digits than its factorization.

78455462780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22550 (or 22548 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 56.

The spelling of 78455462780 in words is "seventy-eight billion, four hundred fifty-five million, four hundred sixty-two thousand, seven hundred eighty".