13842921497 has 4 divisors (see below), whose sum is σ = 13864317696. Its totient is φ = 13821525300.

The previous prime is 13842921419. The next prime is 13842921541. The reversal of 13842921497 is 79412924831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13842921497 - 2⁸ = 13842921241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13842921397) 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, 10697129 + ... + 10698422.

It is an arithmetic number, because the mean of its divisors is an integer number (3466079424).

Almost surely, 2^13842921497 is an apocalyptic number.

It is an amenable number.

13842921497 is a deficient number, since it is larger than the sum of its proper divisors (21396199).

13842921497 is an equidigital number, since it uses as much as digits as its factorization.

13842921497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21396198.

The product of its digits is 870912, while the sum is 50.

The spelling of 13842921497 in words is "thirteen billion, eight hundred forty-two million, nine hundred twenty-one thousand, four hundred ninety-seven".