16492789215 has 72 divisors (see below), whose sum is σ = 34129151280. Its totient is φ = 7534785888.

The previous prime is 16492789171. The next prime is 16492789217. The reversal of 16492789215 is 51298729461.

It is a happy number.

It is not a de Polignac number, because 16492789215 - 2²⁶ = 16425680351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16492789217) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10444296 + ... + 10445874.

It is an arithmetic number, because the mean of its divisors is an integer number (474015990).

Almost surely, 2^16492789215 is an apocalyptic number.

16492789215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16492789215 is an abundant number, since it is smaller than the sum of its proper divisors (17636362065).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16492789215 is an frugal number, since it uses more digits than its factorization.

16492789215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186 (or 1594 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 16492789215 in words is "sixteen billion, four hundred ninety-two million, seven hundred eighty-nine thousand, two hundred fifteen".