2217631982948 has 12 divisors (see below), whose sum is σ = 3915199829100. Its totient is φ = 1099003460352.

The previous prime is 2217631982947. The next prime is 2217631982981. The reversal of 2217631982948 is 8492891367122.

It can be written as a sum of positive squares in 2 ways, for example, as 1219275307264 + 998356675684 = 1104208^2 + 999178^2 .

It is a super-2 number, since 2×2217631982948² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2217631982947) 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, 2453132273 + ... + 2453133176.

It is an arithmetic number, because the mean of its divisors is an integer number (326266652425).

Almost surely, 2^{2217631982948} is an apocalyptic number.

It is an amenable number.

2217631982948 is a deficient number, since it is larger than the sum of its proper divisors (1697567846152).

2217631982948 is a wasteful number, since it uses less digits than its factorization.

2217631982948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4906265566 (or 4906265564 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 62.

The spelling of 2217631982948 in words is "two trillion, two hundred seventeen billion, six hundred thirty-one million, nine hundred eighty-two thousand, nine hundred forty-eight".