2263185577981 has 8 divisors (see below), whose sum is σ = 2295092664000. Its totient is φ = 2231279359680.

The previous prime is 2263185577979. The next prime is 2263185578023. The reversal of 2263185577981 is 1897755813622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2263185577981 - 2¹ = 2263185577979 is a prime.

It is a super-2 number, since 2×2263185577981² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263185577901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6485445 + ... + 6825493.

It is an arithmetic number, because the mean of its divisors is an integer number (286886583000).

Almost surely, 2^{2263185577981} is an apocalyptic number.

It is an amenable number.

2263185577981 is a deficient number, since it is larger than the sum of its proper divisors (31907086019).

2263185577981 is an equidigital number, since it uses as much as digits as its factorization.

2263185577981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433859.

The product of its digits is 50803200, while the sum is 64.

The spelling of 2263185577981 in words is "two trillion, two hundred sixty-three billion, one hundred eighty-five million, five hundred seventy-seven thousand, nine hundred eighty-one".