40120702591 has 2 divisors, whose sum is σ = 40120702592. Its totient is φ = 40120702590.

The previous prime is 40120702483. The next prime is 40120702663. The reversal of 40120702591 is 19520702104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40120702591 - 2²⁵ = 40087148159 is a prime.

It is a super-2 number, since 2×40120702591² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40120700591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20060351295 + 20060351296.

It is an arithmetic number, because the mean of its divisors is an integer number (20060351296).

Almost surely, 2^40120702591 is an apocalyptic number.

40120702591 is a deficient number, since it is larger than the sum of its proper divisors (1).

40120702591 is an equidigital number, since it uses as much as digits as its factorization.

40120702591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 40120702591 in words is "forty billion, one hundred twenty million, seven hundred two thousand, five hundred ninety-one".