2869835061991 has 2 divisors, whose sum is σ = 2869835061992. Its totient is φ = 2869835061990.

The previous prime is 2869835061937. The next prime is 2869835062007. The reversal of 2869835061991 is 1991605389682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2869835061991 - 2²³ = 2869826673383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2869835061791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1434917530995 + 1434917530996.

It is an arithmetic number, because the mean of its divisors is an integer number (1434917530996).

Almost surely, 2^{2869835061991} is an apocalyptic number.

2869835061991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2869835061991 is an equidigital number, since it uses as much as digits as its factorization.

2869835061991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50388480, while the sum is 67.

The spelling of 2869835061991 in words is "two trillion, eight hundred sixty-nine billion, eight hundred thirty-five million, sixty-one thousand, nine hundred ninety-one".