40928781479 has 2 divisors, whose sum is σ = 40928781480. Its totient is φ = 40928781478.

The previous prime is 40928781473. The next prime is 40928781503. The reversal of 40928781479 is 97418782904.

40928781479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40928781479 - 2¹⁶ = 40928715943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40928781473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20464390739 + 20464390740.

It is an arithmetic number, because the mean of its divisors is an integer number (20464390740).

Almost surely, 2^40928781479 is an apocalyptic number.

40928781479 is a deficient number, since it is larger than the sum of its proper divisors (1).

40928781479 is an equidigital number, since it uses as much as digits as its factorization.

40928781479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 59.

The spelling of 40928781479 in words is "forty billion, nine hundred twenty-eight million, seven hundred eighty-one thousand, four hundred seventy-nine".