40232344991 has 2 divisors, whose sum is σ = 40232344992. Its totient is φ = 40232344990.

The previous prime is 40232344967. The next prime is 40232345057. The reversal of 40232344991 is 19944323204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40232344991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40232344951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20116172495 + 20116172496.

It is an arithmetic number, because the mean of its divisors is an integer number (20116172496).

Almost surely, 2^40232344991 is an apocalyptic number.

40232344991 is a deficient number, since it is larger than the sum of its proper divisors (1).

40232344991 is an equidigital number, since it uses as much as digits as its factorization.

40232344991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 40232344991 in words is "forty billion, two hundred thirty-two million, three hundred forty-four thousand, nine hundred ninety-one".