2271379747 has 16 divisors (see below), whose sum is σ = 2797312000. Its totient is φ = 1795999392.

The previous prime is 2271379739. The next prime is 2271379753. The reversal of 2271379747 is 7479731722.

It is a cyclic number.

It is not a de Polignac number, because 2271379747 - 2³ = 2271379739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2271379747.

It is not an unprimeable number, because it can be changed into a prime (2271379727) 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, 155254 + ... + 169252.

It is an arithmetic number, because the mean of its divisors is an integer number (174832000).

Almost surely, 2^2271379747 is an apocalyptic number.

2271379747 is a deficient number, since it is larger than the sum of its proper divisors (525932253).

2271379747 is a wasteful number, since it uses less digits than its factorization.

2271379747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15802.

The product of its digits is 1037232, while the sum is 49.

The square root of 2271379747 is about 47658.9943977000. The cubic root of 2271379747 is about 1314.5080488593.

The spelling of 2271379747 in words is "two billion, two hundred seventy-one million, three hundred seventy-nine thousand, seven hundred forty-seven".