40253654417 has 2 divisors, whose sum is σ = 40253654418. Its totient is φ = 40253654416.

The previous prime is 40253654381. The next prime is 40253654423. The reversal of 40253654417 is 71445635204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24285793921 + 15967860496 = 155839^2 + 126364^2 .

It is a cyclic number.

It is not a de Polignac number, because 40253654417 - 2¹⁰ = 40253653393 is a prime.

It is not a weakly prime, because it can be changed into another prime (40253654477) 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, 20126827208 + 20126827209.

It is an arithmetic number, because the mean of its divisors is an integer number (20126827209).

Almost surely, 2^40253654417 is an apocalyptic number.

It is an amenable number.

40253654417 is a deficient number, since it is larger than the sum of its proper divisors (1).

40253654417 is an equidigital number, since it uses as much as digits as its factorization.

40253654417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 40253654417 in words is "forty billion, two hundred fifty-three million, six hundred fifty-four thousand, four hundred seventeen".