24640425142 has 4 divisors (see below), whose sum is σ = 36960637716. Its totient is φ = 12320212570.

The previous prime is 24640425091. The next prime is 24640425143. The reversal of 24640425142 is 24152404642.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24152404642 = 2 ⋅12076202321.

It is a junction number, because it is equal to n+sod(n) for n = 24640425098 and 24640425107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24640425143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160106284 + ... + 6160106287.

It is an arithmetic number, because the mean of its divisors is an integer number (9240159429).

Almost surely, 2^24640425142 is an apocalyptic number.

24640425142 is a deficient number, since it is larger than the sum of its proper divisors (12320212574).

24640425142 is a wasteful number, since it uses less digits than its factorization.

24640425142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12320212573.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 24640425142 its reverse (24152404642), we get a palindrome (48792829784).

The spelling of 24640425142 in words is "twenty-four billion, six hundred forty million, four hundred twenty-five thousand, one hundred forty-two".