2564673967 has 2 divisors, whose sum is σ = 2564673968. Its totient is φ = 2564673966.

The previous prime is 2564673953. The next prime is 2564673997. The reversal of 2564673967 is 7693764652.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2564673967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2564673997) 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, 1282336983 + 1282336984.

It is an arithmetic number, because the mean of its divisors is an integer number (1282336984).

Almost surely, 2^2564673967 is an apocalyptic number.

2564673967 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564673967 is an equidigital number, since it uses as much as digits as its factorization.

2564673967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 55.

The square root of 2564673967 is about 50642.6101914188. The cubic root of 2564673967 is about 1368.8127898414.

The spelling of 2564673967 in words is "two billion, five hundred sixty-four million, six hundred seventy-three thousand, nine hundred sixty-seven".