13851429923 has 4 divisors (see below), whose sum is σ = 13856181360. Its totient is φ = 13846678488.

The previous prime is 13851429883. The next prime is 13851429929. The reversal of 13851429923 is 32992415831.

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 13851429923 - 2⁸ = 13851429667 is a prime.

It is a super-2 number, since 2×13851429923² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13851429929) 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, 2371343 + ... + 2377176.

It is an arithmetic number, because the mean of its divisors is an integer number (3464045340).

Almost surely, 2^13851429923 is an apocalyptic number.

13851429923 is a deficient number, since it is larger than the sum of its proper divisors (4751437).

13851429923 is an equidigital number, since it uses as much as digits as its factorization.

13851429923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751436.

The product of its digits is 466560, while the sum is 47.

The spelling of 13851429923 in words is "thirteen billion, eight hundred fifty-one million, four hundred twenty-nine thousand, nine hundred twenty-three".