14781949123 has 4 divisors (see below), whose sum is σ = 15651475560. Its totient is φ = 13912422688.

The previous prime is 14781949111. The next prime is 14781949129. The reversal of 14781949123 is 32194918741.

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

It is a cyclic number.

It is not a de Polignac number, because 14781949123 - 2¹³ = 14781940931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14781949129) 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, 434763193 + ... + 434763226.

It is an arithmetic number, because the mean of its divisors is an integer number (3912868890).

Almost surely, 2^14781949123 is an apocalyptic number.

14781949123 is a deficient number, since it is larger than the sum of its proper divisors (869526437).

14781949123 is an equidigital number, since it uses as much as digits as its factorization.

14781949123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869526436.

The product of its digits is 435456, while the sum is 49.

The spelling of 14781949123 in words is "fourteen billion, seven hundred eighty-one million, nine hundred forty-nine thousand, one hundred twenty-three".