8132646272440 has 128 divisors (see below), whose sum is σ = 19243460304000. Its totient is φ = 3088799078400.

The previous prime is 8132646272419. The next prime is 8132646272447. The reversal of 8132646272440 is 442726462318.

It is a super-2 number, since 2×8132646272440² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8132646272447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 588079446 + ... + 588093274.

It is an arithmetic number, because the mean of its divisors is an integer number (150339533625).

Almost surely, 2^{8132646272440} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8132646272440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9621730152000).

8132646272440 is an abundant number, since it is smaller than the sum of its proper divisors (11110814031560).

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

8132646272440 is a wasteful number, since it uses less digits than its factorization.

8132646272440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22241 (or 22237 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 8132646272440 in words is "eight trillion, one hundred thirty-two billion, six hundred forty-six million, two hundred seventy-two thousand, four hundred forty".