40420198258331 has 2 divisors, whose sum is σ = 40420198258332. Its totient is φ = 40420198258330.

The previous prime is 40420198258261. The next prime is 40420198258367. The reversal of 40420198258331 is 13385289102404.

40420198258331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40420198258331 - 2²² = 40420194064027 is a prime.

It is a super-2 number, since 2×40420198258331² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40420198258331.

It is not a weakly prime, because it can be changed into another prime (40420191258331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20210099129165 + 20210099129166.

It is an arithmetic number, because the mean of its divisors is an integer number (20210099129166).

Almost surely, 2^{40420198258331} is an apocalyptic number.

40420198258331 is a deficient number, since it is larger than the sum of its proper divisors (1).

40420198258331 is an equidigital number, since it uses as much as digits as its factorization.

40420198258331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 40420198258331 in words is "forty trillion, four hundred twenty billion, one hundred ninety-eight million, two hundred fifty-eight thousand, three hundred thirty-one".