13916928493 has 6 divisors (see below), whose sum is σ = 14987919534. Its totient is φ = 12846002904.

The previous prime is 13916928491. The next prime is 13916928497. The reversal of 13916928493 is 39482961931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9634796649 + 4282131844 = 98157^2 + 65438^2 .

It is not a de Polignac number, because 13916928493 - 2¹ = 13916928491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13916928491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 408988 + ... + 441706.

It is an arithmetic number, because the mean of its divisors is an integer number (2497986589).

Almost surely, 2^13916928493 is an apocalyptic number.

13916928493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13916928493 is a deficient number, since it is larger than the sum of its proper divisors (1070991041).

13916928493 is an frugal number, since it uses more digits than its factorization.

13916928493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65451 (or 32732 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 55.

The spelling of 13916928493 in words is "thirteen billion, nine hundred sixteen million, nine hundred twenty-eight thousand, four hundred ninety-three".