40637121911479 has 2 divisors, whose sum is σ = 40637121911480. Its totient is φ = 40637121911478.

The previous prime is 40637121911459. The next prime is 40637121911521. The reversal of 40637121911479 is 97411912173604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40637121911479 - 2⁵ = 40637121911447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40637121911459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20318560955739 + 20318560955740.

It is an arithmetic number, because the mean of its divisors is an integer number (20318560955740).

Almost surely, 2^{40637121911479} is an apocalyptic number.

40637121911479 is a deficient number, since it is larger than the sum of its proper divisors (1).

40637121911479 is an equidigital number, since it uses as much as digits as its factorization.

40637121911479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 40637121911479 in words is "forty trillion, six hundred thirty-seven billion, one hundred twenty-one million, nine hundred eleven thousand, four hundred seventy-nine".