34881578689 has 2 divisors, whose sum is σ = 34881578690. Its totient is φ = 34881578688.

The previous prime is 34881578663. The next prime is 34881578713. The reversal of 34881578689 is 98687518843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33339838464 + 1541740225 = 182592^2 + 39265^2 .

It is a cyclic number.

It is not a de Polignac number, because 34881578689 - 2⁵ = 34881578657 is a prime.

It is not a weakly prime, because it can be changed into another prime (34881578489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17440789344 + 17440789345.

It is an arithmetic number, because the mean of its divisors is an integer number (17440789345).

Almost surely, 2^34881578689 is an apocalyptic number.

It is an amenable number.

34881578689 is a deficient number, since it is larger than the sum of its proper divisors (1).

34881578689 is an equidigital number, since it uses as much as digits as its factorization.

34881578689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92897280, while the sum is 67.

The spelling of 34881578689 in words is "thirty-four billion, eight hundred eighty-one million, five hundred seventy-eight thousand, six hundred eighty-nine".