24540140425442 has 4 divisors (see below), whose sum is σ = 36810210638166. Its totient is φ = 12270070212720.

The previous prime is 24540140425417. The next prime is 24540140425469. The reversal of 24540140425442 is 24452404104542.

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

It can be written as a sum of positive squares in only one way, i.e., 24508549273321 + 31591152121 = 4950611^2 + 177739^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 24540140425442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6135035106359 + ... + 6135035106362.

Almost surely, 2^{24540140425442} is an apocalyptic number.

24540140425442 is a deficient number, since it is larger than the sum of its proper divisors (12270070212724).

24540140425442 is a wasteful number, since it uses less digits than its factorization.

24540140425442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12270070212723.

The product of its (nonzero) digits is 819200, while the sum is 41.

Adding to 24540140425442 its reverse (24452404104542), we get a palindrome (48992544529984).

The spelling of 24540140425442 in words is "twenty-four trillion, five hundred forty billion, one hundred forty million, four hundred twenty-five thousand, four hundred forty-two".