80345081898 has 32 divisors (see below), whose sum is σ = 179681872320. Its totient is φ = 26611107120.

The previous prime is 80345081897. The next prime is 80345081941. The reversal of 80345081898 is 89818054308.

80345081898 is a `hidden beast` number, since 8 + 0 + 3 + 450 + 8 + 189 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80345081897) 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, 4729968 + ... + 4746923.

It is an arithmetic number, because the mean of its divisors is an integer number (5615058510).

Almost surely, 2^80345081898 is an apocalyptic number.

80345081898 is an abundant number, since it is smaller than the sum of its proper divisors (99336790422).

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

80345081898 is a wasteful number, since it uses less digits than its factorization.

80345081898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9477059 (or 9477053 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 80345081898 in words is "eighty billion, three hundred forty-five million, eighty-one thousand, eight hundred ninety-eight".