82560367778 has 32 divisors (see below), whose sum is σ = 142413068160. Its totient is φ = 35163434880.

The previous prime is 82560367777. The next prime is 82560367781. The reversal of 82560367778 is 87776306528.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82560367777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1463300 + ... + 1518672.

It is an arithmetic number, because the mean of its divisors is an integer number (4450408380).

Almost surely, 2^82560367778 is an apocalyptic number.

82560367778 is a deficient number, since it is larger than the sum of its proper divisors (59852700382).

82560367778 is a wasteful number, since it uses less digits than its factorization.

82560367778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56042.

The product of its (nonzero) digits is 23708160, while the sum is 59.

The spelling of 82560367778 in words is "eighty-two billion, five hundred sixty million, three hundred sixty-seven thousand, seven hundred seventy-eight".