198514771474 has 8 divisors (see below), whose sum is σ = 304107735168. Its totient is φ = 97145526420.

The previous prime is 198514771447. The next prime is 198514771493. The reversal of 198514771474 is 474177415891.

It is a happy number.

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

It is a super-2 number, since 2×198514771474² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055929542 + ... + 1055929729.

It is an arithmetic number, because the mean of its divisors is an integer number (38013466896).

Almost surely, 2^198514771474 is an apocalyptic number.

198514771474 is a deficient number, since it is larger than the sum of its proper divisors (105592963694).

198514771474 is a wasteful number, since it uses less digits than its factorization.

198514771474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111859320.

The product of its digits is 7902720, while the sum is 58.

The spelling of 198514771474 in words is "one hundred ninety-eight billion, five hundred fourteen million, seven hundred seventy-one thousand, four hundred seventy-four".