21430024719 has 8 divisors (see below), whose sum is σ = 28574060592. Its totient is φ = 14286336000.

The previous prime is 21430024711. The next prime is 21430024757. The reversal of 21430024719 is 91742003412.

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

It is not a de Polignac number, because 21430024719 - 2³ = 21430024711 is a prime.

It is a super-2 number, since 2×21430024719² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21430024719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21430024711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147969 + ... + 254469.

It is an arithmetic number, because the mean of its divisors is an integer number (3571757574).

Almost surely, 2^21430024719 is an apocalyptic number.

21430024719 is a deficient number, since it is larger than the sum of its proper divisors (7144035873).

21430024719 is a wasteful number, since it uses less digits than its factorization.

21430024719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173577.

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 21430024719 in words is "twenty-one billion, four hundred thirty million, twenty-four thousand, seven hundred nineteen".