223892778513 has 8 divisors (see below), whose sum is σ = 311502996288. Its totient is φ = 142772206544.

The previous prime is 223892778511. The next prime is 223892778517. The reversal of 223892778513 is 315877298322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223892778513 - 2¹ = 223892778511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223892778511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622411370 + ... + 1622411507.

It is an arithmetic number, because the mean of its divisors is an integer number (38937874536).

Almost surely, 2^223892778513 is an apocalyptic number.

223892778513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

223892778513 is a deficient number, since it is larger than the sum of its proper divisors (87610217775).

223892778513 is a wasteful number, since it uses less digits than its factorization.

223892778513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244822903.

The product of its digits is 10160640, while the sum is 57.

The spelling of 223892778513 in words is "two hundred twenty-three billion, eight hundred ninety-two million, seven hundred seventy-eight thousand, five hundred thirteen".