198381477374 has 8 divisors (see below), whose sum is σ = 297579898008. Its totient is φ = 99188178040.

The previous prime is 198381477367. The next prime is 198381477389. The reversal of 198381477374 is 473774183891.

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

It is a congruent number.

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, 1181972 + ... + 1339335.

It is an arithmetic number, because the mean of its divisors is an integer number (37197487251).

Almost surely, 2^198381477374 is an apocalyptic number.

198381477374 is a deficient number, since it is larger than the sum of its proper divisors (99198420634).

198381477374 is a wasteful number, since it uses less digits than its factorization.

198381477374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560650.

The product of its digits is 28449792, while the sum is 62.

The spelling of 198381477374 in words is "one hundred ninety-eight billion, three hundred eighty-one million, four hundred seventy-seven thousand, three hundred seventy-four".