2664862397 has 2 divisors, whose sum is σ = 2664862398. Its totient is φ = 2664862396.

The previous prime is 2664862367. The next prime is 2664862399. The reversal of 2664862397 is 7932684662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2392579396 + 272283001 = 48914^2 + 16501^2 .

It is a cyclic number.

It is not a de Polignac number, because 2664862397 - 2¹⁴ = 2664846013 is a prime.

Together with 2664862399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2664862399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332431198 + 1332431199.

It is an arithmetic number, because the mean of its divisors is an integer number (1332431199).

Almost surely, 2^2664862397 is an apocalyptic number.

It is an amenable number.

2664862397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664862397 is an equidigital number, since it uses as much as digits as its factorization.

2664862397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 53.

The square root of 2664862397 is about 51622.3052274886. The cubic root of 2664862397 is about 1386.4097254596.

The spelling of 2664862397 in words is "two billion, six hundred sixty-four million, eight hundred sixty-two thousand, three hundred ninety-seven".