422466647081 has 4 divisors (see below), whose sum is σ = 422468105172. Its totient is φ = 422465188992.

The previous prime is 422466647069. The next prime is 422466647101. The reversal of 422466647081 is 180746664224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57511713856 + 364954933225 = 239816^2 + 604115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422466647081 is a prime.

It is a super-2 number, since 2×422466647081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422466647041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130796 + ... + 928461.

It is an arithmetic number, because the mean of its divisors is an integer number (105617026293).

Almost surely, 2^422466647081 is an apocalyptic number.

It is an amenable number.

422466647081 is a deficient number, since it is larger than the sum of its proper divisors (1458091).

422466647081 is a wasteful number, since it uses less digits than its factorization.

422466647081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458090.

The product of its (nonzero) digits is 3096576, while the sum is 50.

The spelling of 422466647081 in words is "four hundred twenty-two billion, four hundred sixty-six million, six hundred forty-seven thousand, eighty-one".