82123261092 has 72 divisors (see below), whose sum is σ = 209417164320. Its totient is φ = 27134023680.

The previous prime is 82123261049. The next prime is 82123261097. The reversal of 82123261092 is 29016232128.

It is a happy number.

82123261092 is a `hidden beast` number, since 8 + 2 + 1 + 2 + 32 + 610 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (82123261097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3194763 + ... + 3220365.

Almost surely, 2^82123261092 is an apocalyptic number.

It is an amenable number.

82123261092 is an abundant number, since it is smaller than the sum of its proper divisors (127293903228).

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

82123261092 is a wasteful number, since it uses less digits than its factorization.

82123261092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26393 (or 26388 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 82123261092 in words is "eighty-two billion, one hundred twenty-three million, two hundred sixty-one thousand, ninety-two".