82378783925 has 24 divisors (see below), whose sum is σ = 104016869280. Its totient is φ = 64701320000.

The previous prime is 82378783919. The next prime is 82378783933. The reversal of 82378783925 is 52938787328.

It is not a de Polignac number, because 82378783925 - 2¹⁸ = 82378521781 is a prime.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 1104050 + ... + 1176300.

It is an arithmetic number, because the mean of its divisors is an integer number (4334036220).

Almost surely, 2^82378783925 is an apocalyptic number.

It is an amenable number.

82378783925 is a deficient number, since it is larger than the sum of its proper divisors (21638085355).

82378783925 is a wasteful number, since it uses less digits than its factorization.

82378783925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73093 (or 73088 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 62.

The spelling of 82378783925 in words is "eighty-two billion, three hundred seventy-eight million, seven hundred eighty-three thousand, nine hundred twenty-five".