16474368851 has 4 divisors (see below), whose sum is σ = 16857493752. Its totient is φ = 16091243952.

The previous prime is 16474368839. The next prime is 16474368899. The reversal of 16474368851 is 15886347461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15886347461 = 84229 ⋅188609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16474368851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16474368793 and 16474368802.

It is not an unprimeable number, because it can be changed into a prime (16474368811) 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, 191562386 + ... + 191562471.

It is an arithmetic number, because the mean of its divisors is an integer number (4214373438).

Almost surely, 2^16474368851 is an apocalyptic number.

16474368851 is a deficient number, since it is larger than the sum of its proper divisors (383124901).

16474368851 is an equidigital number, since it uses as much as digits as its factorization.

16474368851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383124900.

The product of its digits is 3870720, while the sum is 53.

The spelling of 16474368851 in words is "sixteen billion, four hundred seventy-four million, three hundred sixty-eight thousand, eight hundred fifty-one".