40889498813 has 2 divisors, whose sum is σ = 40889498814. Its totient is φ = 40889498812.

The previous prime is 40889498789. The next prime is 40889498857. The reversal of 40889498813 is 31889498804.

40889498813 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 can be written as a sum of positive squares in only one way, i.e., 40851281689 + 38217124 = 202117^2 + 6182^2 .

It is a cyclic number.

It is not a de Polignac number, because 40889498813 - 2¹² = 40889494717 is a prime.

It is a super-2 number, since 2×40889498813² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40889498873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20444749406 + 20444749407.

It is an arithmetic number, because the mean of its divisors is an integer number (20444749407).

Almost surely, 2^40889498813 is an apocalyptic number.

It is an amenable number.

40889498813 is a deficient number, since it is larger than the sum of its proper divisors (1).

40889498813 is an equidigital number, since it uses as much as digits as its factorization.

40889498813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15925248, while the sum is 62.

Subtracting from 40889498813 its reverse (31889498804), we obtain a palindrome (9000000009).

The spelling of 40889498813 in words is "forty billion, eight hundred eighty-nine million, four hundred ninety-eight thousand, eight hundred thirteen".