16427872461 has 96 divisors (see below), whose sum is σ = 30435268864. Its totient is φ = 7664025600.

The previous prime is 16427872423. The next prime is 16427872471.

16427872461 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16427872461 - 2¹⁵ = 16427839693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16427872461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16427872471) 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 95 ways as a sum of consecutive naturals, for example, 1215501 + ... + 1228941.

Almost surely, 2^16427872461 is an apocalyptic number.

16427872461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16427872461 is a deficient number, since it is larger than the sum of its proper divisors (14007396403).

16427872461 is a wasteful number, since it uses less digits than its factorization.

16427872461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13523 (or 13512 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

It can be divided in two parts, 16427 and 872461, that added together give a palindrome (888888).

The spelling of 16427872461 in words is "sixteen billion, four hundred twenty-seven million, eight hundred seventy-two thousand, four hundred sixty-one".