34054547981 has 2 divisors, whose sum is σ = 34054547982. Its totient is φ = 34054547980.

The previous prime is 34054547959. The next prime is 34054547987. The reversal of 34054547981 is 18974545043.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24370019881 + 9684528100 = 156109^2 + 98410^2 .

It is an emirp because it is prime and its reverse (18974545043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34054547981 - 2²⁶ = 33987439117 is a prime.

It is a super-2 number, since 2×34054547981² (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 (34054547987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17027273990 + 17027273991.

It is an arithmetic number, because the mean of its divisors is an integer number (17027273991).

Almost surely, 2^34054547981 is an apocalyptic number.

It is an amenable number.

34054547981 is a deficient number, since it is larger than the sum of its proper divisors (1).

34054547981 is an equidigital number, since it uses as much as digits as its factorization.

34054547981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 34054547981 in words is "thirty-four billion, fifty-four million, five hundred forty-seven thousand, nine hundred eighty-one".