34099984981 has 2 divisors, whose sum is σ = 34099984982. Its totient is φ = 34099984980.

The previous prime is 34099984951. The next prime is 34099985039. The reversal of 34099984981 is 18948999043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32845762756 + 1254222225 = 181234^2 + 35415^2 .

It is a cyclic number.

It is not a de Polignac number, because 34099984981 - 2²¹ = 34097887829 is a prime.

It is a super-2 number, since 2×34099984981² (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 (34099984951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17049992490 + 17049992491.

It is an arithmetic number, because the mean of its divisors is an integer number (17049992491).

Almost surely, 2^34099984981 is an apocalyptic number.

It is an amenable number.

34099984981 is a deficient number, since it is larger than the sum of its proper divisors (1).

34099984981 is an equidigital number, since it uses as much as digits as its factorization.

34099984981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20155392, while the sum is 64.

The spelling of 34099984981 in words is "thirty-four billion, ninety-nine million, nine hundred eighty-four thousand, nine hundred eighty-one".