189693349463 has 2 divisors, whose sum is σ = 189693349464. Its totient is φ = 189693349462.

The previous prime is 189693349441. The next prime is 189693349487. The reversal of 189693349463 is 364943396981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189693349463 - 2⁶ = 189693349399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189693349463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189693349663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94846674731 + 94846674732.

It is an arithmetic number, because the mean of its divisors is an integer number (94846674732).

Almost surely, 2^189693349463 is an apocalyptic number.

189693349463 is a deficient number, since it is larger than the sum of its proper divisors (1).

189693349463 is an equidigital number, since it uses as much as digits as its factorization.

189693349463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90699264, while the sum is 65.

The spelling of 189693349463 in words is "one hundred eighty-nine billion, six hundred ninety-three million, three hundred forty-nine thousand, four hundred sixty-three".