34309399387 has 18 divisors (see below), whose sum is σ = 35929932324. Its totient is φ = 32743922400.

The previous prime is 34309399357. The next prime is 34309399409. The reversal of 34309399387 is 78399390343.

It is not a de Polignac number, because 34309399387 - 2¹⁹ = 34308875099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34309399357) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 57086887 + ... + 57087487.

Almost surely, 2^34309399387 is an apocalyptic number.

34309399387 is a deficient number, since it is larger than the sum of its proper divisors (1620532937).

34309399387 is an frugal number, since it uses more digits than its factorization.

34309399387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 58.

The spelling of 34309399387 in words is "thirty-four billion, three hundred nine million, three hundred ninety-nine thousand, three hundred eighty-seven".