10202191821593 has 2 divisors, whose sum is σ = 10202191821594. Its totient is φ = 10202191821592.

The previous prime is 10202191821551. The next prime is 10202191821607. The reversal of 10202191821593 is 39512819120201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5947101614224 + 4255090207369 = 2438668^2 + 2062787^2 .

It is a cyclic number.

It is not a de Polignac number, because 10202191821593 - 2³² = 10197896854297 is a prime.

It is not a weakly prime, because it can be changed into another prime (10202191821893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101095910796 + 5101095910797.

It is an arithmetic number, because the mean of its divisors is an integer number (5101095910797).

Almost surely, 2^{10202191821593} is an apocalyptic number.

It is an amenable number.

10202191821593 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202191821593 is an equidigital number, since it uses as much as digits as its factorization.

10202191821593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 44.

The spelling of 10202191821593 in words is "ten trillion, two hundred two billion, one hundred ninety-one million, eight hundred twenty-one thousand, five hundred ninety-three".