16431107473 has 32 divisors (see below), whose sum is σ = 18460016640. Its totient is φ = 14499072000.

The previous prime is 16431107449. The next prime is 16431107501. The reversal of 16431107473 is 37470113461.

It is a cyclic number.

It is not a de Polignac number, because 16431107473 - 2³³ = 7841172881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16431107423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25633233 + ... + 25633873.

It is an arithmetic number, because the mean of its divisors is an integer number (576875520).

Almost surely, 2^16431107473 is an apocalyptic number.

It is an amenable number.

16431107473 is a deficient number, since it is larger than the sum of its proper divisors (2028909167).

16431107473 is a wasteful number, since it uses less digits than its factorization.

16431107473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149.

The product of its (nonzero) digits is 42336, while the sum is 37.

It can be divided in two parts, 16431 and 107473, that added together give a square (123904 = 352²).

The spelling of 16431107473 in words is "sixteen billion, four hundred thirty-one million, one hundred seven thousand, four hundred seventy-three".