84037780980 has 72 divisors (see below), whose sum is σ = 254957775072. Its totient is φ = 22406279616.

The previous prime is 84037780973. The next prime is 84037781017. The reversal of 84037780980 is 8908773048.

84037780980 is a `hidden beast` number, since 8 + 403 + 77 + 80 + 98 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 1120539 + ... + 1193181.

Almost surely, 2^84037780980 is an apocalyptic number.

It is an amenable number.

84037780980 is an abundant number, since it is smaller than the sum of its proper divisors (170919994092).

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

84037780980 is a wasteful number, since it uses less digits than its factorization.

84037780980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79085 (or 79080 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 84037780980 in words is "eighty-four billion, thirty-seven million, seven hundred eighty thousand, nine hundred eighty".