13824780379 has 4 divisors (see below), whose sum is σ = 13980115080. Its totient is φ = 13669445680.

The previous prime is 13824780337. The next prime is 13824780383. The reversal of 13824780379 is 97308742831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97308742831 = 317 ⋅306967643.

It is a cyclic number.

It is not a de Polignac number, because 13824780379 - 2²¹ = 13822683227 is a prime.

It is a super-2 number, since 2×13824780379² (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 (13824781379) 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, 77667217 + ... + 77667394.

It is an arithmetic number, because the mean of its divisors is an integer number (3495028770).

Almost surely, 2^13824780379 is an apocalyptic number.

13824780379 is a deficient number, since it is larger than the sum of its proper divisors (155334701).

13824780379 is an equidigital number, since it uses as much as digits as its factorization.

13824780379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155334700.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 13824780379 in words is "thirteen billion, eight hundred twenty-four million, seven hundred eighty thousand, three hundred seventy-nine".