94672991689 has 2 divisors, whose sum is σ = 94672991690. Its totient is φ = 94672991688.

The previous prime is 94672991669. The next prime is 94672991753. The reversal of 94672991689 is 98619927649.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63302560000 + 31370431689 = 251600^2 + 177117^2 .

It is a cyclic number.

It is not a de Polignac number, because 94672991689 - 2⁵ = 94672991657 is a prime.

It is not a weakly prime, because it can be changed into another prime (94672991639) 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, 47336495844 + 47336495845.

It is an arithmetic number, because the mean of its divisors is an integer number (47336495845).

Almost surely, 2^94672991689 is an apocalyptic number.

It is an amenable number.

94672991689 is a deficient number, since it is larger than the sum of its proper divisors (1).

94672991689 is an equidigital number, since it uses as much as digits as its factorization.

94672991689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105815808, while the sum is 70.

The spelling of 94672991689 in words is "ninety-four billion, six hundred seventy-two million, nine hundred ninety-one thousand, six hundred eighty-nine".