42992499791 has 2 divisors, whose sum is σ = 42992499792. Its totient is φ = 42992499790.

The previous prime is 42992499757. The next prime is 42992499799. The reversal of 42992499791 is 19799429924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42992499791 - 2²⁶ = 42925390927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42992499799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21496249895 + 21496249896.

It is an arithmetic number, because the mean of its divisors is an integer number (21496249896).

Almost surely, 2^42992499791 is an apocalyptic number.

42992499791 is a deficient number, since it is larger than the sum of its proper divisors (1).

42992499791 is an equidigital number, since it uses as much as digits as its factorization.

42992499791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26453952, while the sum is 65.

The spelling of 42992499791 in words is "forty-two billion, nine hundred ninety-two million, four hundred ninety-nine thousand, seven hundred ninety-one".