2660428867 has 2 divisors, whose sum is σ = 2660428868. Its totient is φ = 2660428866.

The previous prime is 2660428819. The next prime is 2660428879. The reversal of 2660428867 is 7688240662.

2660428867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2660428867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2660428867.

It is not a weakly prime, because it can be changed into another prime (2660428367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330214433 + 1330214434.

It is an arithmetic number, because the mean of its divisors is an integer number (1330214434).

Almost surely, 2^2660428867 is an apocalyptic number.

2660428867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660428867 is an equidigital number, since it uses as much as digits as its factorization.

2660428867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The square root of 2660428867 is about 51579.3453525731. The cubic root of 2660428867 is about 1385.6404423353.

The spelling of 2660428867 in words is "two billion, six hundred sixty million, four hundred twenty-eight thousand, eight hundred sixty-seven".