34365073621 has 2 divisors, whose sum is σ = 34365073622. Its totient is φ = 34365073620.

The previous prime is 34365073451. The next prime is 34365073679. The reversal of 34365073621 is 12637056343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21812336100 + 12552737521 = 147690^2 + 112039^2 .

It is an emirp because it is prime and its reverse (12637056343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34365073621 - 2¹⁹ = 34364549333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34365073021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17182536810 + 17182536811.

It is an arithmetic number, because the mean of its divisors is an integer number (17182536811).

Almost surely, 2^34365073621 is an apocalyptic number.

It is an amenable number.

34365073621 is a deficient number, since it is larger than the sum of its proper divisors (1).

34365073621 is an equidigital number, since it uses as much as digits as its factorization.

34365073621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 40.

The spelling of 34365073621 in words is "thirty-four billion, three hundred sixty-five million, seventy-three thousand, six hundred twenty-one".