13353638387 has 4 divisors (see below), whose sum is σ = 14056461480. Its totient is φ = 12650815296.

The previous prime is 13353638371. The next prime is 13353638423. The reversal of 13353638387 is 78383635331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78383635331 = 503 ⋅155832277.

It is not a de Polignac number, because 13353638387 - 2⁴ = 13353638371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13353638317) 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, 351411518 + ... + 351411555.

It is an arithmetic number, because the mean of its divisors is an integer number (3514115370).

Almost surely, 2^13353638387 is an apocalyptic number.

13353638387 is a deficient number, since it is larger than the sum of its proper divisors (702823093).

13353638387 is an equidigital number, since it uses as much as digits as its factorization.

13353638387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702823092.

The product of its digits is 3265920, while the sum is 50.

The spelling of 13353638387 in words is "thirteen billion, three hundred fifty-three million, six hundred thirty-eight thousand, three hundred eighty-seven".