19860430973 has 8 divisors (see below), whose sum is σ = 19944662976. Its totient is φ = 19776240000.

The previous prime is 19860430957. The next prime is 19860431011. The reversal of 19860430973 is 37903406891.

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

It is a cyclic number.

It is not a de Polignac number, because 19860430973 - 2⁴ = 19860430957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19860430943) 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, 1318040 + ... + 1333022.

It is an arithmetic number, because the mean of its divisors is an integer number (2493082872).

Almost surely, 2^19860430973 is an apocalyptic number.

It is an amenable number.

19860430973 is a deficient number, since it is larger than the sum of its proper divisors (84232003).

19860430973 is a wasteful number, since it uses less digits than its factorization.

19860430973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20515.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 19860430973 in words is "nineteen billion, eight hundred sixty million, four hundred thirty thousand, nine hundred seventy-three".