40881257479 has 2 divisors, whose sum is σ = 40881257480. Its totient is φ = 40881257478.

The previous prime is 40881257477. The next prime is 40881257503. The reversal of 40881257479 is 97475218804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40881257479 - 2¹ = 40881257477 is a prime.

Together with 40881257477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40881257477) 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, 20440628739 + 20440628740.

It is an arithmetic number, because the mean of its divisors is an integer number (20440628740).

Almost surely, 2^40881257479 is an apocalyptic number.

40881257479 is a deficient number, since it is larger than the sum of its proper divisors (1).

40881257479 is an equidigital number, since it uses as much as digits as its factorization.

40881257479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 40881257479 in words is "forty billion, eight hundred eighty-one million, two hundred fifty-seven thousand, four hundred seventy-nine".