199081378034 has 48 divisors (see below), whose sum is σ = 379127208096. Its totient is φ = 77529211200.

The previous prime is 199081378033. The next prime is 199081378043. The reversal of 199081378034 is 430873180991.

It is not an unprimeable number, because it can be changed into a prime (199081378033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2418437 + ... + 2499399.

It is an arithmetic number, because the mean of its divisors is an integer number (7898483502).

Almost surely, 2^199081378034 is an apocalyptic number.

199081378034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199081378034 is a deficient number, since it is larger than the sum of its proper divisors (180045830062).

199081378034 is a wasteful number, since it uses less digits than its factorization.

199081378034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83271 (or 83264 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 199081378034 in words is "one hundred ninety-nine billion, eighty-one million, three hundred seventy-eight thousand, thirty-four".