9977227481 has 12 divisors (see below), whose sum is σ = 10965005712. Its totient is φ = 9072279216.

The previous prime is 9977227453. The next prime is 9977227493. The reversal of 9977227481 is 1847227799.

It is a de Polignac number, because none of the positive numbers 2^k-9977227481 is a prime.

It is a super-2 number, since 2×9977227481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9977227441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429251 + ... + 451896.

It is an arithmetic number, because the mean of its divisors is an integer number (913750476).

Almost surely, 2^9977227481 is an apocalyptic number.

It is an amenable number.

9977227481 is a deficient number, since it is larger than the sum of its proper divisors (987778231).

9977227481 is a wasteful number, since it uses less digits than its factorization.

9977227481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881240 (or 881227 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 56.

The square root of 9977227481 is about 99886.0725076324. The cubic root of 9977227481 is about 2152.7980502250.

The spelling of 9977227481 in words is "nine billion, nine hundred seventy-seven million, two hundred twenty-seven thousand, four hundred eighty-one".