361889899 has 8 divisors (see below), whose sum is σ = 413765888. Its totient is φ = 310058280.

The previous prime is 361889887. The next prime is 361889909. The reversal of 361889899 is 998988163.

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

It is not a de Polignac number, because 361889899 - 2¹⁹ = 361365611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361889819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8764 + ... + 28294.

It is an arithmetic number, because the mean of its divisors is an integer number (51720736).

Almost surely, 2^361889899 is an apocalyptic number.

361889899 is a deficient number, since it is larger than the sum of its proper divisors (51875989).

361889899 is a wasteful number, since it uses less digits than its factorization.

361889899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22185.

The product of its digits is 6718464, while the sum is 61.

The square root of 361889899 is about 19023.4039803606. The cubic root of 361889899 is about 712.6213349943.

The spelling of 361889899 in words is "three hundred sixty-one million, eight hundred eighty-nine thousand, eight hundred ninety-nine".