80858740092 has 144 divisors (see below), whose sum is σ = 217305160800. Its totient is φ = 23257018368.

The previous prime is 80858740091. The next prime is 80858740117. The reversal of 80858740092 is 29004785808.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80858740091) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6711498 + ... + 6723534.

Almost surely, 2^80858740092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80858740092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108652580400).

80858740092 is an abundant number, since it is smaller than the sum of its proper divisors (136446420708).

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

80858740092 is a wasteful number, since it uses less digits than its factorization.

80858740092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12240 (or 12221 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 80858740092 in words is "eighty billion, eight hundred fifty-eight million, seven hundred forty thousand, ninety-two".