6623574739 has 2 divisors, whose sum is σ = 6623574740. Its totient is φ = 6623574738.

The previous prime is 6623574733. The next prime is 6623574791. The reversal of 6623574739 is 9374753266.

It is an a-pointer prime, because the next prime (6623574791) can be obtained adding 6623574739 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6623574739 is a prime.

It is not a weakly prime, because it can be changed into another prime (6623574733) 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, 3311787369 + 3311787370.

It is an arithmetic number, because the mean of its divisors is an integer number (3311787370).

Almost surely, 2^6623574739 is an apocalyptic number.

6623574739 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623574739 is an equidigital number, since it uses as much as digits as its factorization.

6623574739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 52.

The square root of 6623574739 is about 81385.3472008322. The cubic root of 6623574739 is about 1878.0081834865.

The spelling of 6623574739 in words is "six billion, six hundred twenty-three million, five hundred seventy-four thousand, seven hundred thirty-nine".