34487665897 has 2 divisors, whose sum is σ = 34487665898. Its totient is φ = 34487665896.

The previous prime is 34487665889. The next prime is 34487665937. The reversal of 34487665897 is 79856678443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18642898521 + 15844767376 = 136539^2 + 125876^2 .

It is a cyclic number.

It is not a de Polignac number, because 34487665897 - 2³ = 34487665889 is a prime.

It is not a weakly prime, because it can be changed into another prime (34487665297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17243832948 + 17243832949.

It is an arithmetic number, because the mean of its divisors is an integer number (17243832949).

Almost surely, 2^34487665897 is an apocalyptic number.

It is an amenable number.

34487665897 is a deficient number, since it is larger than the sum of its proper divisors (1).

34487665897 is an equidigital number, since it uses as much as digits as its factorization.

34487665897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243855360, while the sum is 67.

The spelling of 34487665897 in words is "thirty-four billion, four hundred eighty-seven million, six hundred sixty-five thousand, eight hundred ninety-seven".