34016509981 has 2 divisors, whose sum is σ = 34016509982. Its totient is φ = 34016509980.

The previous prime is 34016509937. The next prime is 34016510023. The reversal of 34016509981 is 18990561043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25196482756 + 8820027225 = 158734^2 + 93915^2 .

It is an emirp because it is prime and its reverse (18990561043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34016509981 - 2¹¹ = 34016507933 is a prime.

It is a super-2 number, since 2×34016509981² (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 (34016509481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17008254990 + 17008254991.

It is an arithmetic number, because the mean of its divisors is an integer number (17008254991).

Almost surely, 2^34016509981 is an apocalyptic number.

It is an amenable number.

34016509981 is a deficient number, since it is larger than the sum of its proper divisors (1).

34016509981 is an equidigital number, since it uses as much as digits as its factorization.

34016509981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 34016509981 in words is "thirty-four billion, sixteen million, five hundred nine thousand, nine hundred eighty-one".