2664464867989 has 2 divisors, whose sum is σ = 2664464867990. Its totient is φ = 2664464867988.

The previous prime is 2664464867971. The next prime is 2664464868001. The reversal of 2664464867989 is 9897684644662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1402369903089 + 1262094964900 = 1184217^2 + 1123430^2 .

It is a cyclic number.

It is not a de Polignac number, because 2664464867989 - 2²⁹ = 2663927997077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2664464867489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332232433994 + 1332232433995.

It is an arithmetic number, because the mean of its divisors is an integer number (1332232433995).

Almost surely, 2^{2664464867989} is an apocalyptic number.

It is an amenable number.

2664464867989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664464867989 is an equidigital number, since it uses as much as digits as its factorization.

2664464867989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6019743744, while the sum is 79.

The spelling of 2664464867989 in words is "two trillion, six hundred sixty-four billion, four hundred sixty-four million, eight hundred sixty-seven thousand, nine hundred eighty-nine".