34488257581 has 2 divisors, whose sum is σ = 34488257582. Its totient is φ = 34488257580.

The previous prime is 34488257563. The next prime is 34488257591. The reversal of 34488257581 is 18575288443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28449568900 + 6038688681 = 168670^2 + 77709^2 .

It is a cyclic number.

It is not a de Polignac number, because 34488257581 - 2¹⁷ = 34488126509 is a prime.

It is a super-2 number, since 2×34488257581² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34488257521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17244128790 + 17244128791.

It is an arithmetic number, because the mean of its divisors is an integer number (17244128791).

Almost surely, 2^34488257581 is an apocalyptic number.

It is an amenable number.

34488257581 is a deficient number, since it is larger than the sum of its proper divisors (1).

34488257581 is an equidigital number, since it uses as much as digits as its factorization.

34488257581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8601600, while the sum is 55.

The spelling of 34488257581 in words is "thirty-four billion, four hundred eighty-eight million, two hundred fifty-seven thousand, five hundred eighty-one".