2270987681 has 4 divisors (see below), whose sum is σ = 2323801392. Its totient is φ = 2218173972.

The previous prime is 2270987659. The next prime is 2270987701. The reversal of 2270987681 is 1867890722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2270987681 - 2⁶ = 2270987617 is a prime.

It is a super-2 number, since 2×2270987681² = 10314770094507515522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2270983681) 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, 26406791 + ... + 26406876.

It is an arithmetic number, because the mean of its divisors is an integer number (580950348).

Almost surely, 2^2270987681 is an apocalyptic number.

It is an amenable number.

2270987681 is a deficient number, since it is larger than the sum of its proper divisors (52813711).

2270987681 is an equidigital number, since it uses as much as digits as its factorization.

2270987681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52813710.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 2270987681 is about 47654.8809777131. The cubic root of 2270987681 is about 1314.4324114897.

The spelling of 2270987681 in words is "two billion, two hundred seventy million, nine hundred eighty-seven thousand, six hundred eighty-one".