14949785851 has 32 divisors (see below), whose sum is σ = 20347504128. Its totient is φ = 10605738240.

The previous prime is 14949785833. The next prime is 14949785863. The reversal of 14949785851 is 15858794941.

It is a cyclic number.

It is not a de Polignac number, because 14949785851 - 2⁵ = 14949785819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14949785851.

It is not an unprimeable number, because it can be changed into a prime (14949705851) 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, 29221 + ... + 175366.

It is an arithmetic number, because the mean of its divisors is an integer number (635859504).

Almost surely, 2^14949785851 is an apocalyptic number.

14949785851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14949785851 is a deficient number, since it is larger than the sum of its proper divisors (5397718277).

14949785851 is a wasteful number, since it uses less digits than its factorization.

14949785851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204691.

The product of its digits is 14515200, while the sum is 61.

The spelling of 14949785851 in words is "fourteen billion, nine hundred forty-nine million, seven hundred eighty-five thousand, eight hundred fifty-one".