223687157399 has 4 divisors (see below), whose sum is σ = 224518708440. Its totient is φ = 222855606360.

The previous prime is 223687157371. The next prime is 223687157459. The reversal of 223687157399 is 993751786322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993751786322 = 2 ⋅496875893161.

It is a cyclic number.

It is not a de Polignac number, because 223687157399 - 2¹⁶ = 223687091863 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 (223687157299) 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, 415775117 + ... + 415775654.

It is an arithmetic number, because the mean of its divisors is an integer number (56129677110).

Almost surely, 2^223687157399 is an apocalyptic number.

223687157399 is a deficient number, since it is larger than the sum of its proper divisors (831551041).

223687157399 is an equidigital number, since it uses as much as digits as its factorization.

223687157399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831551040.

The product of its digits is 34292160, while the sum is 62.

The spelling of 223687157399 in words is "two hundred twenty-three billion, six hundred eighty-seven million, one hundred fifty-seven thousand, three hundred ninety-nine".