40242334991 has 2 divisors, whose sum is σ = 40242334992. Its totient is φ = 40242334990.

The previous prime is 40242334987. The next prime is 40242335017. The reversal of 40242334991 is 19943324204.

40242334991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40242334991 - 2² = 40242334987 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40242334961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121167495 + 20121167496.

It is an arithmetic number, because the mean of its divisors is an integer number (20121167496).

Almost surely, 2^40242334991 is an apocalyptic number.

40242334991 is a deficient number, since it is larger than the sum of its proper divisors (1).

40242334991 is an equidigital number, since it uses as much as digits as its factorization.

40242334991 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 40242334991 in words is "forty billion, two hundred forty-two million, three hundred thirty-four thousand, nine hundred ninety-one".