34709263621 has 2 divisors, whose sum is σ = 34709263622. Its totient is φ = 34709263620.

The previous prime is 34709263607. The next prime is 34709263643. The reversal of 34709263621 is 12636290743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32693702596 + 2015561025 = 180814^2 + 44895^2 .

It is a cyclic number.

It is not a de Polignac number, because 34709263621 - 2⁷ = 34709263493 is a prime.

It is a super-2 number, since 2×34709263621² (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 (34709261621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17354631810 + 17354631811.

It is an arithmetic number, because the mean of its divisors is an integer number (17354631811).

Almost surely, 2^34709263621 is an apocalyptic number.

It is an amenable number.

34709263621 is a deficient number, since it is larger than the sum of its proper divisors (1).

34709263621 is an equidigital number, since it uses as much as digits as its factorization.

34709263621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 34709263621 in words is "thirty-four billion, seven hundred nine million, two hundred sixty-three thousand, six hundred twenty-one".