82704245553780 has 24 divisors (see below), whose sum is σ = 231571887550752. Its totient is φ = 22054465480992.

The previous prime is 82704245553763. The next prime is 82704245553803. The reversal of 82704245553780 is 8735554240728.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 1378404092563 = 82704245553780 / (8 + 2 + 7 + 0 + 4 + 2 + 4 + 5 + 5 + 5 + 3 + 7 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689202046222 + ... + 689202046341.

It is an arithmetic number, because the mean of its divisors is an integer number (9648828647948).

Almost surely, 2^{82704245553780} is an apocalyptic number.

It is an amenable number.

82704245553780 is an abundant number, since it is smaller than the sum of its proper divisors (148867641996972).

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

82704245553780 is a wasteful number, since it uses less digits than its factorization.

82704245553780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378404092575 (or 1378404092573 counting only the distinct ones).

The product of its (nonzero) digits is 75264000, while the sum is 60.

The spelling of 82704245553780 in words is "eighty-two trillion, seven hundred four billion, two hundred forty-five million, five hundred fifty-three thousand, seven hundred eighty".