2261328310908 has 120 divisors (see below), whose sum is σ = 5938215034752. Its totient is φ = 750380875776.

The previous prime is 2261328310897. The next prime is 2261328310909. The reversal of 2261328310908 is 8090138231622.

2261328310908 is a `hidden beast` number, since 2 + 2 + 6 + 1 + 328 + 310 + 9 + 0 + 8 = 666.

It is a super-2 number, since 2×2261328310908² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261328310909) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 151790116 + ... + 151805012.

Almost surely, 2^{2261328310908} 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 2261328310908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2969107517376).

2261328310908 is an abundant number, since it is smaller than the sum of its proper divisors (3676886723844).

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

2261328310908 is a wasteful number, since it uses less digits than its factorization.

2261328310908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16993 (or 16982 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 2261328310908 in words is "two trillion, two hundred sixty-one billion, three hundred twenty-eight million, three hundred ten thousand, nine hundred eight".