82478593769 has 32 divisors (see below), whose sum is σ = 100075143168. Its totient is φ = 66945672000.

The previous prime is 82478593763. The next prime is 82478593781. The reversal of 82478593769 is 96739587428.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 82478593769 - 2⁸ = 82478593513 is a prime.

It is a super-2 number, since 2×82478593769² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82478593699 and 82478593708.

It is not an unprimeable number, because it can be changed into a prime (82478593763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12014432 + ... + 12021294.

It is an arithmetic number, because the mean of its divisors is an integer number (3127348224).

Almost surely, 2^82478593769 is an apocalyptic number.

It is an amenable number.

82478593769 is a deficient number, since it is larger than the sum of its proper divisors (17596549399).

82478593769 is a wasteful number, since it uses less digits than its factorization.

82478593769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9629.

The product of its digits is 182891520, while the sum is 68.

The spelling of 82478593769 in words is "eighty-two billion, four hundred seventy-eight million, five hundred ninety-three thousand, seven hundred sixty-nine".