16421463470719 has 4 divisors (see below), whose sum is σ = 16422975726120. Its totient is φ = 16419951215320.

The previous prime is 16421463470683. The next prime is 16421463470723. The reversal of 16421463470719 is 91707436412461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16421463470719 - 2¹¹ = 16421463468671 is a prime.

It is a super-2 number, since 2×16421463470719² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16421463470719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16421463471719) 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, 756111412 + ... + 756133129.

It is an arithmetic number, because the mean of its divisors is an integer number (4105743931530).

Almost surely, 2^{16421463470719} is an apocalyptic number.

16421463470719 is a deficient number, since it is larger than the sum of its proper divisors (1512255401).

16421463470719 is a wasteful number, since it uses less digits than its factorization.

16421463470719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512255400.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 16421463470719 in words is "sixteen trillion, four hundred twenty-one billion, four hundred sixty-three million, four hundred seventy thousand, seven hundred nineteen".