198029690525474 has 4 divisors (see below), whose sum is σ = 297044535788214. Its totient is φ = 99014845262736.

The previous prime is 198029690525473. The next prime is 198029690525479. The reversal of 198029690525474 is 474525096920891.

198029690525474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 195888715800625 + 2140974724849 = 13996025^2 + 1463207^2 .

It is a junction number, because it is equal to n+sod(n) for n = 198029690525398 and 198029690525407.

It is not an unprimeable number, because it can be changed into a prime (198029690525473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49507422631367 + ... + 49507422631370.

Almost surely, 2^{198029690525474} is an apocalyptic number.

198029690525474 is a deficient number, since it is larger than the sum of its proper divisors (99014845262740).

198029690525474 is an equidigital number, since it uses as much as digits as its factorization.

198029690525474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99014845262739.

The product of its (nonzero) digits is 391910400, while the sum is 71.

The spelling of 198029690525474 in words is "one hundred ninety-eight trillion, twenty-nine billion, six hundred ninety million, five hundred twenty-five thousand, four hundred seventy-four".