19191000201092 has 12 divisors (see below), whose sum is σ = 33691548278556. Its totient is φ = 9564843550080.

The previous prime is 19191000201077. The next prime is 19191000201103. The reversal of 19191000201092 is 29010200019191.

It can be written as a sum of positive squares in 2 ways, for example, as 1512540861316 + 17678459339776 = 1229854^2 + 4204576^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7664136209 + ... + 7664138712.

It is an arithmetic number, because the mean of its divisors is an integer number (2807629023213).

Almost surely, 2^{19191000201092} is an apocalyptic number.

It is an amenable number.

19191000201092 is a deficient number, since it is larger than the sum of its proper divisors (14500548077464).

19191000201092 is a wasteful number, since it uses less digits than its factorization.

19191000201092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15328275238 (or 15328275236 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 19191000201092 in words is "nineteen trillion, one hundred ninety-one billion, two hundred one thousand, ninety-two".