82780575005974 has 16 divisors (see below), whose sum is σ = 124456043194560. Its totient is φ = 41295314289600.

The previous prime is 82780575005957. The next prime is 82780575006001. The reversal of 82780575005974 is 47950057508728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19849929 + ... + 23655460.

It is an arithmetic number, because the mean of its divisors is an integer number (7778502699660).

Almost surely, 2^{82780575005974} is an apocalyptic number.

82780575005974 is a deficient number, since it is larger than the sum of its proper divisors (41675468188586).

82780575005974 is a wasteful number, since it uses less digits than its factorization.

82780575005974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43507575.

The product of its (nonzero) digits is 197568000, while the sum is 67.

The spelling of 82780575005974 in words is "eighty-two trillion, seven hundred eighty billion, five hundred seventy-five million, five thousand, nine hundred seventy-four".