19044686830 has 16 divisors (see below), whose sum is σ = 36917393184. Its totient is φ = 7031884320.

The previous prime is 19044686821. The next prime is 19044686839. The reversal of 19044686830 is 3868644091.

It is an interprime number because it is at equal distance from previous prime (19044686821) and next prime (19044686839).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19044686839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73248666 + ... + 73248925.

It is an arithmetic number, because the mean of its divisors is an integer number (2307337074).

Almost surely, 2^19044686830 is an apocalyptic number.

19044686830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19044686830 is a deficient number, since it is larger than the sum of its proper divisors (17872706354).

19044686830 is a wasteful number, since it uses less digits than its factorization.

19044686830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146497611.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 19044686830 in words is "nineteen billion, forty-four million, six hundred eighty-six thousand, eight hundred thirty".