16431107471 has 4 divisors (see below), whose sum is σ = 17145503472. Its totient is φ = 15716711472.

The previous prime is 16431107449. The next prime is 16431107501. The reversal of 16431107471 is 17470113461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16431107471 is a prime.

It is a super-3 number, since 3×16431107471³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16431107401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357197966 + ... + 357198011.

It is an arithmetic number, because the mean of its divisors is an integer number (4286375868).

Almost surely, 2^16431107471 is an apocalyptic number.

16431107471 is a deficient number, since it is larger than the sum of its proper divisors (714396001).

16431107471 is an equidigital number, since it uses as much as digits as its factorization.

16431107471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714396000.

The product of its (nonzero) digits is 14112, while the sum is 35.

The spelling of 16431107471 in words is "sixteen billion, four hundred thirty-one million, one hundred seven thousand, four hundred seventy-one".