34015609981 has 2 divisors, whose sum is σ = 34015609982. Its totient is φ = 34015609980.

The previous prime is 34015609937. The next prime is 34015609993. The reversal of 34015609981 is 18990651043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20825087481 + 13190522500 = 144309^2 + 114850^2 .

It is a cyclic number.

It is not a de Polignac number, because 34015609981 - 2¹⁷ = 34015478909 is a prime.

It is a super-2 number, since 2×34015609981² (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 (34015609081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17007804990 + 17007804991.

It is an arithmetic number, because the mean of its divisors is an integer number (17007804991).

Almost surely, 2^34015609981 is an apocalyptic number.

It is an amenable number.

34015609981 is a deficient number, since it is larger than the sum of its proper divisors (1).

34015609981 is an equidigital number, since it uses as much as digits as its factorization.

34015609981 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 34015609981 in words is "thirty-four billion, fifteen million, six hundred nine thousand, nine hundred eighty-one".