34360721393 has 2 divisors, whose sum is σ = 34360721394. Its totient is φ = 34360721392.

The previous prime is 34360721387. The next prime is 34360721443. The reversal of 34360721393 is 39312706343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30189757504 + 4170963889 = 173752^2 + 64583^2 .

It is a cyclic number.

It is not a de Polignac number, because 34360721393 - 2¹² = 34360717297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34360721393.

It is not a weakly prime, because it can be changed into another prime (34360721303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17180360696 + 17180360697.

It is an arithmetic number, because the mean of its divisors is an integer number (17180360697).

Almost surely, 2^34360721393 is an apocalyptic number.

It is an amenable number.

34360721393 is a deficient number, since it is larger than the sum of its proper divisors (1).

34360721393 is an equidigital number, since it uses as much as digits as its factorization.

34360721393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 41.

The spelling of 34360721393 in words is "thirty-four billion, three hundred sixty million, seven hundred twenty-one thousand, three hundred ninety-three".