24642469142 has 4 divisors (see below), whose sum is σ = 36963703716. Its totient is φ = 12321234570.

The previous prime is 24642469141. The next prime is 24642469147. The reversal of 24642469142 is 24196424642.

It is a happy number.

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 = 24642469093 and 24642469102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24642469141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160617284 + ... + 6160617287.

It is an arithmetic number, because the mean of its divisors is an integer number (9240925929).

Almost surely, 2^24642469142 is an apocalyptic number.

24642469142 is a deficient number, since it is larger than the sum of its proper divisors (12321234574).

24642469142 is a wasteful number, since it uses less digits than its factorization.

24642469142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12321234573.

The product of its digits is 663552, while the sum is 44.

The spelling of 24642469142 in words is "twenty-four billion, six hundred forty-two million, four hundred sixty-nine thousand, one hundred forty-two".