2664154447 has 2 divisors, whose sum is σ = 2664154448. Its totient is φ = 2664154446.

The previous prime is 2664154421. The next prime is 2664154459. The reversal of 2664154447 is 7444514662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2664154447 - 2³¹ = 516670799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2664154247) 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, 1332077223 + 1332077224.

It is an arithmetic number, because the mean of its divisors is an integer number (1332077224).

Almost surely, 2^2664154447 is an apocalyptic number.

2664154447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664154447 is an equidigital number, since it uses as much as digits as its factorization.

2664154447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 43.

The square root of 2664154447 is about 51615.4477554927. The cubic root of 2664154447 is about 1386.2869429231.

The spelling of 2664154447 in words is "two billion, six hundred sixty-four million, one hundred fifty-four thousand, four hundred forty-seven".