2645502971 has 2 divisors, whose sum is σ = 2645502972. Its totient is φ = 2645502970.

The previous prime is 2645502967. The next prime is 2645503037. The reversal of 2645502971 is 1792055462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2645502971 - 2² = 2645502967 is a prime.

It is not a weakly prime, because it can be changed into another prime (2645502371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322751485 + 1322751486.

It is an arithmetic number, because the mean of its divisors is an integer number (1322751486).

Almost surely, 2^2645502971 is an apocalyptic number.

2645502971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645502971 is an equidigital number, since it uses as much as digits as its factorization.

2645502971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 2645502971 is about 51434.4531515598. The cubic root of 2645502971 is about 1383.0442789994.

The spelling of 2645502971 in words is "two billion, six hundred forty-five million, five hundred two thousand, nine hundred seventy-one".