19108068458 has 16 divisors (see below), whose sum is σ = 28949991840. Its totient is φ = 9458420400.

The previous prime is 19108068443. The next prime is 19108068461. The reversal of 19108068458 is 85486080191.

It is a super-2 number, since 2×19108068458² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22748 + ... + 196808.

It is an arithmetic number, because the mean of its divisors is an integer number (1809374490).

Almost surely, 2^19108068458 is an apocalyptic number.

19108068458 is a deficient number, since it is larger than the sum of its proper divisors (9841923382).

19108068458 is a wasteful number, since it uses less digits than its factorization.

19108068458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174613.

The product of its (nonzero) digits is 552960, while the sum is 50.

The spelling of 19108068458 in words is "nineteen billion, one hundred eight million, sixty-eight thousand, four hundred fifty-eight".