322142775138 has 90 divisors (see below), whose sum is σ = 762154225371. Its totient is φ = 101685953016.

The previous prime is 322142775091. The next prime is 322142775151. The reversal of 322142775138 is 831577241223.

322142775138 is a `hidden beast` number, since 3 + 2 + 21 + 42 + 77 + 513 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 161071387569 + 161071387569 = 401337^2 + 401337^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=401337.

It is a super-2 number, since 2×322142775138² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 322142775093 and 322142775102.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 137256081 + ... + 137258427.

Almost surely, 2^322142775138 is an apocalyptic number.

322142775138 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 322142775138

322142775138 is an abundant number, since it is smaller than the sum of its proper divisors (440011450233).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

322142775138 is an frugal number, since it uses more digits than its factorization.

322142775138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4746 (or 2371 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The spelling of 322142775138 in words is "three hundred twenty-two billion, one hundred forty-two million, seven hundred seventy-five thousand, one hundred thirty-eight".