198029690525479 has 2 divisors, whose sum is σ = 198029690525480. Its totient is φ = 198029690525478.

The previous prime is 198029690525473. The next prime is 198029690525483. The reversal of 198029690525479 is 974525096920891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198029690525479 - 2⁷ = 198029690525351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198029690525473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99014845262739 + 99014845262740.

It is an arithmetic number, because the mean of its divisors is an integer number (99014845262740).

Almost surely, 2^{198029690525479} is an apocalyptic number.

198029690525479 is a deficient number, since it is larger than the sum of its proper divisors (1).

198029690525479 is an equidigital number, since it uses as much as digits as its factorization.

198029690525479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 881798400, while the sum is 76.

The spelling of 198029690525479 in words is "one hundred ninety-eight trillion, twenty-nine billion, six hundred ninety million, five hundred twenty-five thousand, four hundred seventy-nine".