84782942817925 has 24 divisors (see below), whose sum is σ = 114694293827520. Its totient is φ = 61657045267200.

The previous prime is 84782942817913. The next prime is 84782942817961. The reversal of 84782942817925 is 52971824928748.

It is not a de Polignac number, because 84782942817925 - 2¹⁵ = 84782942785157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3001812 + ... + 13363261.

It is an arithmetic number, because the mean of its divisors is an integer number (4778928909480).

Almost surely, 2^{84782942817925} is an apocalyptic number.

It is an amenable number.

84782942817925 is a deficient number, since it is larger than the sum of its proper divisors (29911351009595).

84782942817925 is a wasteful number, since it uses less digits than its factorization.

84782942817925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16383933 (or 16383928 counting only the distinct ones).

The product of its digits is 1300561920, while the sum is 76.

The spelling of 84782942817925 in words is "eighty-four trillion, seven hundred eighty-two billion, nine hundred forty-two million, eight hundred seventeen thousand, nine hundred twenty-five".