42622775415881 has 2 divisors, whose sum is σ = 42622775415882. Its totient is φ = 42622775415880.

The previous prime is 42622775415859. The next prime is 42622775415893. The reversal of 42622775415881 is 18851457722624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39308937459856 + 3313837956025 = 6269684^2 + 1820395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42622775415881 is a prime.

It is a super-2 number, since 2×42622775415881² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42622775445881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21311387707940 + 21311387707941.

It is an arithmetic number, because the mean of its divisors is an integer number (21311387707941).

Almost surely, 2^{42622775415881} is an apocalyptic number.

It is an amenable number.

42622775415881 is a deficient number, since it is larger than the sum of its proper divisors (1).

42622775415881 is an equidigital number, since it uses as much as digits as its factorization.

42622775415881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60211200, while the sum is 62.

The spelling of 42622775415881 in words is "forty-two trillion, six hundred twenty-two billion, seven hundred seventy-five million, four hundred fifteen thousand, eight hundred eighty-one".