8899162274581 has 8 divisors (see below), whose sum is σ = 9190175651384. Its totient is φ = 8610806554560.

The previous prime is 8899162274567. The next prime is 8899162274593. The reversal of 8899162274581 is 1854722619988.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 437992476100 + 8461169798481 = 661810^2 + 2908809^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8899162274581 - 2⁹ = 8899162274069 is a prime.

It is a super-2 number, since 2×8899162274581² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8899162274581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8899162274081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664407390 + ... + 664420783.

It is an arithmetic number, because the mean of its divisors is an integer number (1148771956423).

Almost surely, 2^{8899162274581} is an apocalyptic number.

It is an amenable number.

8899162274581 is a deficient number, since it is larger than the sum of its proper divisors (291013376803).

8899162274581 is a wasteful number, since it uses less digits than its factorization.

8899162274581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328828391.

The product of its digits is 139345920, while the sum is 70.

The spelling of 8899162274581 in words is "eight trillion, eight hundred ninety-nine billion, one hundred sixty-two million, two hundred seventy-four thousand, five hundred eighty-one".