39099921193 has 2 divisors, whose sum is σ = 39099921194. Its totient is φ = 39099921192.

The previous prime is 39099921167. The next prime is 39099921227. The reversal of 39099921193 is 39112999093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32208763024 + 6891158169 = 179468^2 + 83013^2 .

It is a cyclic number.

It is not a de Polignac number, because 39099921193 - 2¹³ = 39099913001 is a prime.

It is not a weakly prime, because it can be changed into another prime (39099921143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19549960596 + 19549960597.

It is an arithmetic number, because the mean of its divisors is an integer number (19549960597).

Almost surely, 2^39099921193 is an apocalyptic number.

It is an amenable number.

39099921193 is a deficient number, since it is larger than the sum of its proper divisors (1).

39099921193 is an equidigital number, since it uses as much as digits as its factorization.

39099921193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1062882, while the sum is 55.

The spelling of 39099921193 in words is "thirty-nine billion, ninety-nine million, nine hundred twenty-one thousand, one hundred ninety-three".