223685294427 has 48 divisors (see below), whose sum is σ = 390020117760. Its totient is φ = 120679315776.

The previous prime is 223685294423. The next prime is 223685294431. The reversal of 223685294427 is 724492586322.

223685294427 is a `hidden beast` number, since 2 + 23 + 68 + 52 + 94 + 427 = 666.

It is an interprime number because it is at equal distance from previous prime (223685294423) and next prime (223685294431).

It is not a de Polignac number, because 223685294427 - 2² = 223685294423 is a prime.

It is a super-2 number, since 2×223685294427² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (223685294423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31828 + ... + 669614.

It is an arithmetic number, because the mean of its divisors is an integer number (8125419120).

Almost surely, 2^223685294427 is an apocalyptic number.

223685294427 is a deficient number, since it is larger than the sum of its proper divisors (166334823333).

223685294427 is a wasteful number, since it uses less digits than its factorization.

223685294427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638112 (or 638109 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 223685294427 in words is "two hundred twenty-three billion, six hundred eighty-five million, two hundred ninety-four thousand, four hundred twenty-seven".