16231287419 has 16 divisors (see below), whose sum is σ = 17131445184. Its totient is φ = 15362265600.

The previous prime is 16231287349. The next prime is 16231287431. The reversal of 16231287419 is 91478213261.

It is a cyclic number.

It is not a de Polignac number, because 16231287419 - 2²⁸ = 15962851963 is a prime.

It is a super-2 number, since 2×16231287419² (a number of 21 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 16231287419.

It is not an unprimeable number, because it can be changed into a prime (16231287619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138122 + ... + 227024.

It is an arithmetic number, because the mean of its divisors is an integer number (1070715324).

Almost surely, 2^16231287419 is an apocalyptic number.

16231287419 is a deficient number, since it is larger than the sum of its proper divisors (900157765).

16231287419 is an equidigital number, since it uses as much as digits as its factorization.

16231287419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89078.

The product of its digits is 145152, while the sum is 44.

The spelling of 16231287419 in words is "sixteen billion, two hundred thirty-one million, two hundred eighty-seven thousand, four hundred nineteen".