2265280427721 has 16 divisors (see below), whose sum is σ = 3046515617664. Its totient is φ = 1497145770624.

The previous prime is 2265280427693. The next prime is 2265280427743. The reversal of 2265280427721 is 1277240825622.

It is not a de Polignac number, because 2265280427721 - 2⁵ = 2265280427689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2265280425721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3403666 + ... + 4014411.

It is an arithmetic number, because the mean of its divisors is an integer number (190407226104).

Almost surely, 2^{2265280427721} is an apocalyptic number.

It is an amenable number.

2265280427721 is a deficient number, since it is larger than the sum of its proper divisors (781235189943).

2265280427721 is a wasteful number, since it uses less digits than its factorization.

2265280427721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7418960.

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 2265280427721 in words is "two trillion, two hundred sixty-five billion, two hundred eighty million, four hundred twenty-seven thousand, seven hundred twenty-one".