34308808661890 has 256 divisors, whose sum is σ = 75226420684800. Its totient is φ = 11251486310400.

The previous prime is 34308808661887. The next prime is 34308808661893. The reversal of 34308808661890 is 9816680880343.

It is an interprime number because it is at equal distance from previous prime (34308808661887) and next prime (34308808661893).

It is not an unprimeable number, because it can be changed into a prime (34308808661893) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1858841542 + ... + 1858859998.

It is an arithmetic number, because the mean of its divisors is an integer number (293853205800).

Almost surely, 2^{34308808661890} is an apocalyptic number.

34308808661890 is an abundant number, since it is smaller than the sum of its proper divisors (40917612022910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34308808661890 is a wasteful number, since it uses less digits than its factorization.

34308808661890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18770 (or 18756 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 64.

The spelling of 34308808661890 in words is "thirty-four trillion, three hundred eight billion, eight hundred eight million, six hundred sixty-one thousand, eight hundred ninety".