84373280778 has 16 divisors (see below), whose sum is σ = 168752763936. Its totient is φ = 28123393200.

The previous prime is 84373280711. The next prime is 84373280809. The reversal of 84373280778 is 87708237348.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71148 + ... + 416903.

It is an arithmetic number, because the mean of its divisors is an integer number (10547047746).

Almost surely, 2^84373280778 is an apocalyptic number.

84373280778 is an abundant number, since it is smaller than the sum of its proper divisors (84379483158).

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

84373280778 is a wasteful number, since it uses less digits than its factorization.

84373280778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516869.

The product of its (nonzero) digits is 12644352, while the sum is 57.

The spelling of 84373280778 in words is "eighty-four billion, three hundred seventy-three million, two hundred eighty thousand, seven hundred seventy-eight".