24194228638 has 4 divisors (see below), whose sum is σ = 36291342960. Its totient is φ = 12097114318.

The previous prime is 24194228621. The next prime is 24194228671. The reversal of 24194228638 is 83682249142.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 24194228591 and 24194228600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6048557158 + ... + 6048557161.

It is an arithmetic number, because the mean of its divisors is an integer number (9072835740).

Almost surely, 2^24194228638 is an apocalyptic number.

24194228638 is a deficient number, since it is larger than the sum of its proper divisors (12097114322).

24194228638 is a wasteful number, since it uses less digits than its factorization.

24194228638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12097114321.

The product of its digits is 1327104, while the sum is 49.

The spelling of 24194228638 in words is "twenty-four billion, one hundred ninety-four million, two hundred twenty-eight thousand, six hundred thirty-eight".