80897845492 has 48 divisors (see below), whose sum is σ = 146126090880. Its totient is φ = 39165291648.

The previous prime is 80897845487. The next prime is 80897845493. The reversal of 80897845492 is 29454879808.

It is a happy number.

It is a super-2 number, since 2×80897845492² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80897845493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10678618 + ... + 10686190.

It is an arithmetic number, because the mean of its divisors is an integer number (3044293560).

Almost surely, 2^80897845492 is an apocalyptic number.

It is an amenable number.

80897845492 is a deficient number, since it is larger than the sum of its proper divisors (65228245388).

80897845492 is a wasteful number, since it uses less digits than its factorization.

80897845492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8152 (or 8150 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 80897845492 in words is "eighty billion, eight hundred ninety-seven million, eight hundred forty-five thousand, four hundred ninety-two".