16783474669 has 24 divisors (see below), whose sum is σ = 18515219712. Its totient is φ = 15202624320.

The previous prime is 16783474667. The next prime is 16783474709. The reversal of 16783474669 is 96647438761.

It is not a de Polignac number, because 16783474669 - 2¹ = 16783474667 is a prime.

It is a super-2 number, since 2×16783474669² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16783474667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5018812 + ... + 5022154.

It is an arithmetic number, because the mean of its divisors is an integer number (771467488).

Almost surely, 2^16783474669 is an apocalyptic number.

It is an amenable number.

16783474669 is a deficient number, since it is larger than the sum of its proper divisors (1731745043).

16783474669 is a wasteful number, since it uses less digits than its factorization.

16783474669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917 (or 3904 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 61.

The spelling of 16783474669 in words is "sixteen billion, seven hundred eighty-three million, four hundred seventy-four thousand, six hundred sixty-nine".