11591992051 has 2 divisors, whose sum is σ = 11591992052. Its totient is φ = 11591992050.

The previous prime is 11591991953. The next prime is 11591992067. The reversal of 11591992051 is 15029919511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11591992051 - 2¹⁹ = 11591467763 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11591991989 and 11591992007.

It is not a weakly prime, because it can be changed into another prime (11591902051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5795996025 + 5795996026.

It is an arithmetic number, because the mean of its divisors is an integer number (5795996026).

Almost surely, 2^11591992051 is an apocalyptic number.

11591992051 is a deficient number, since it is larger than the sum of its proper divisors (1).

11591992051 is an equidigital number, since it uses as much as digits as its factorization.

11591992051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 43.

The spelling of 11591992051 in words is "eleven billion, five hundred ninety-one million, nine hundred ninety-two thousand, fifty-one".