198029690525475 has 48 divisors (see below), whose sum is σ = 364284176805600. Its totient is φ = 105471747596160.

The previous prime is 198029690525473. The next prime is 198029690525479. The reversal of 198029690525475 is 574525096920891.

198029690525475 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 2 + 9 + 6 + 90 + 525 + 4 + 7 + 5 = 666.

It is not a de Polignac number, because 198029690525475 - 2¹ = 198029690525473 is a prime.

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 in 47 ways as a sum of consecutive naturals, for example, 199626180 + ... + 200615729.

It is an arithmetic number, because the mean of its divisors is an integer number (7589253683450).

Almost surely, 2^{198029690525475} is an apocalyptic number.

198029690525475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198029690525475 is a deficient number, since it is larger than the sum of its proper divisors (166254486280125).

198029690525475 is a wasteful number, since it uses less digits than its factorization.

198029690525475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400242661 (or 400242650 counting only the distinct ones).

The product of its (nonzero) digits is 489888000, while the sum is 72.

The spelling of 198029690525475 in words is "one hundred ninety-eight trillion, twenty-nine billion, six hundred ninety million, five hundred twenty-five thousand, four hundred seventy-five".