11954826791 has 2 divisors, whose sum is σ = 11954826792. Its totient is φ = 11954826790.

The previous prime is 11954826773. The next prime is 11954826811. The reversal of 11954826791 is 19762845911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11954826791 - 2¹⁰ = 11954825767 is a prime.

It is a super-2 number, since 2×11954826791² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11954826491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5977413395 + 5977413396.

It is an arithmetic number, because the mean of its divisors is an integer number (5977413396).

Almost surely, 2^11954826791 is an apocalyptic number.

11954826791 is a deficient number, since it is larger than the sum of its proper divisors (1).

11954826791 is an equidigital number, since it uses as much as digits as its factorization.

11954826791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 53.

The spelling of 11954826791 in words is "eleven billion, nine hundred fifty-four million, eight hundred twenty-six thousand, seven hundred ninety-one".