19472573830 has 8 divisors (see below), whose sum is σ = 35050632912. Its totient is φ = 7789029528.

The previous prime is 19472573821. The next prime is 19472573837. The reversal of 19472573830 is 3837527491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×19472573830² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19472573837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973628682 + ... + 973628701.

It is an arithmetic number, because the mean of its divisors is an integer number (4381329114).

Almost surely, 2^19472573830 is an apocalyptic number.

19472573830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19472573830 is a deficient number, since it is larger than the sum of its proper divisors (15578059082).

19472573830 is a wasteful number, since it uses less digits than its factorization.

19472573830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947257390.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 19472573830 in words is "nineteen billion, four hundred seventy-two million, five hundred seventy-three thousand, eight hundred thirty".