1813779354 has 8 divisors (see below), whose sum is σ = 3627558720. Its totient is φ = 604593116.

The previous prime is 1813779353. The next prime is 1813779467. The reversal of 1813779354 is 4539773181.

It is a sphenic number, since it is the product of 3 distinct primes.

1813779354 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1813779353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151148274 + ... + 151148285.

It is an arithmetic number, because the mean of its divisors is an integer number (453444840).

Almost surely, 2^1813779354 is an apocalyptic number.

1813779354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1813779354 is a wasteful number, since it uses less digits than its factorization.

1813779354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302296564.

The product of its digits is 635040, while the sum is 48.

The square root of 1813779354 is about 42588.4885150906. The cubic root of 1813779354 is about 1219.5365421384.

The spelling of 1813779354 in words is "one billion, eight hundred thirteen million, seven hundred seventy-nine thousand, three hundred fifty-four".