2243980962181 has 32 divisors (see below), whose sum is σ = 2751582855168. Its totient is φ = 1789238963520.

The previous prime is 2243980962169. The next prime is 2243980962191. The reversal of 2243980962181 is 1812690893422.

It is a happy number.

It is not a de Polignac number, because 2243980962181 - 2³⁷ = 2106542008709 is a prime.

It is a super-2 number, since 2×2243980962181² (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 (2243980962191) 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, 1017235 + ... + 2350048.

It is an arithmetic number, because the mean of its divisors is an integer number (85986964224).

Almost surely, 2^{2243980962181} is an apocalyptic number.

It is an amenable number.

2243980962181 is a deficient number, since it is larger than the sum of its proper divisors (507601892987).

2243980962181 is a wasteful number, since it uses less digits than its factorization.

2243980962181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367441.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 2243980962181 in words is "two trillion, two hundred forty-three billion, nine hundred eighty million, nine hundred sixty-two thousand, one hundred eighty-one".