40874881843 has 2 divisors, whose sum is σ = 40874881844. Its totient is φ = 40874881842.

The previous prime is 40874881841. The next prime is 40874881913. The reversal of 40874881843 is 34818847804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40874881843 - 2¹ = 40874881841 is a prime.

It is a super-2 number, since 2×40874881843² (a number of 22 digits) contains 22 as substring.

Together with 40874881841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40874881841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20437440921 + 20437440922.

It is an arithmetic number, because the mean of its divisors is an integer number (20437440922).

Almost surely, 2^40874881843 is an apocalyptic number.

40874881843 is a deficient number, since it is larger than the sum of its proper divisors (1).

40874881843 is an equidigital number, since it uses as much as digits as its factorization.

40874881843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5505024, while the sum is 55.

The spelling of 40874881843 in words is "forty billion, eight hundred seventy-four million, eight hundred eighty-one thousand, eight hundred forty-three".