10194990769 has 2 divisors, whose sum is σ = 10194990770. Its totient is φ = 10194990768.

The previous prime is 10194990761. The next prime is 10194990781. The reversal of 10194990769 is 96709949101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9704811169 + 490179600 = 98513^2 + 22140^2 .

It is a cyclic number.

It is not a de Polignac number, because 10194990769 - 2³ = 10194990761 is a prime.

It is a super-2 number, since 2×10194990769² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10194990761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5097495384 + 5097495385.

It is an arithmetic number, because the mean of its divisors is an integer number (5097495385).

Almost surely, 2^10194990769 is an apocalyptic number.

It is an amenable number.

10194990769 is a deficient number, since it is larger than the sum of its proper divisors (1).

10194990769 is an equidigital number, since it uses as much as digits as its factorization.

10194990769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1102248, while the sum is 55.

The spelling of 10194990769 in words is "ten billion, one hundred ninety-four million, nine hundred ninety thousand, seven hundred sixty-nine".