181404474196 has 24 divisors (see below), whose sum is σ = 361374922944. Its totient is φ = 78871510080.

The previous prime is 181404474151. The next prime is 181404474197. The reversal of 181404474196 is 691474404181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181404474197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89625705 + ... + 89627728.

It is an arithmetic number, because the mean of its divisors is an integer number (15057288456).

Almost surely, 2^181404474196 is an apocalyptic number.

It is an amenable number.

181404474196 is a deficient number, since it is larger than the sum of its proper divisors (179970448748).

181404474196 is a wasteful number, since it uses less digits than its factorization.

181404474196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179253471 (or 179253469 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 181404474196 in words is "one hundred eighty-one billion, four hundred four million, four hundred seventy-four thousand, one hundred ninety-six".