19433085830 has 16 divisors (see below), whose sum is σ = 35021866320. Its totient is φ = 7763831712.

The previous prime is 19433085787. The next prime is 19433085887. The reversal of 19433085830 is 3858033491.

It is a super-2 number, since 2×19433085830² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 1166645 + ... + 1183184.

It is an arithmetic number, because the mean of its divisors is an integer number (2188866645).

Almost surely, 2^19433085830 is an apocalyptic number.

19433085830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19433085830 is a deficient number, since it is larger than the sum of its proper divisors (15588780490).

19433085830 is a wasteful number, since it uses less digits than its factorization.

19433085830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350663.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 19433085830 in words is "nineteen billion, four hundred thirty-three million, eighty-five thousand, eight hundred thirty".