21830197863 has 8 divisors (see below), whose sum is σ = 29152200448. Its totient is φ = 14530830264.

The previous prime is 21830197843. The next prime is 21830197871. The reversal of 21830197863 is 36879103812.

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

It is not a de Polignac number, because 21830197863 - 2¹³ = 21830189671 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 (21830197843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5656495 + ... + 5660352.

It is an arithmetic number, because the mean of its divisors is an integer number (3644025056).

Almost surely, 2^21830197863 is an apocalyptic number.

21830197863 is a deficient number, since it is larger than the sum of its proper divisors (7322002585).

21830197863 is a wasteful number, since it uses less digits than its factorization.

21830197863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11317493.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 21830197863 in words is "twenty-one billion, eight hundred thirty million, one hundred ninety-seven thousand, eight hundred sixty-three".