9191000091002 has 16 divisors (see below), whose sum is σ = 13802429521152. Its totient is φ = 4590190834320.

The previous prime is 9191000090999. The next prime is 9191000091011. The reversal of 9191000091002 is 2001900001919.

It is a self number, because there is not a number n which added to its sum of digits gives 9191000091002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33601763 + ... + 33874185.

It is an arithmetic number, because the mean of its divisors is an integer number (862651845072).

Almost surely, 2^{9191000091002} is an apocalyptic number.

9191000091002 is a deficient number, since it is larger than the sum of its proper divisors (4611429430150).

9191000091002 is a wasteful number, since it uses less digits than its factorization.

9191000091002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291853.

The product of its (nonzero) digits is 1458, while the sum is 32.

The spelling of 9191000091002 in words is "nine trillion, one hundred ninety-one billion, ninety-one thousand, two".