40249162417 has 2 divisors, whose sum is σ = 40249162418. Its totient is φ = 40249162416.

The previous prime is 40249162357. The next prime is 40249162423. The reversal of 40249162417 is 71426194204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28092776881 + 12156385536 = 167609^2 + 110256^2 .

It is a cyclic number.

It is not a de Polignac number, because 40249162417 - 2²³ = 40240773809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40249162417.

It is not a weakly prime, because it can be changed into another prime (40249162477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20124581208 + 20124581209.

It is an arithmetic number, because the mean of its divisors is an integer number (20124581209).

Almost surely, 2^40249162417 is an apocalyptic number.

It is an amenable number.

40249162417 is a deficient number, since it is larger than the sum of its proper divisors (1).

40249162417 is an equidigital number, since it uses as much as digits as its factorization.

40249162417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 40249162417 in words is "forty billion, two hundred forty-nine million, one hundred sixty-two thousand, four hundred seventeen".