245344511311442 has 4 divisors (see below), whose sum is σ = 368016766967166. Its totient is φ = 122672255655720.

The previous prime is 245344511311387. The next prime is 245344511311507. The reversal of 245344511311442 is 244113115443542.

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., 237471767594161 + 7872743717281 = 15410119^2 + 2805841^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245344511311393 and 245344511311402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61336127827859 + ... + 61336127827862.

Almost surely, 2^{245344511311442} is an apocalyptic number.

245344511311442 is a deficient number, since it is larger than the sum of its proper divisors (122672255655724).

245344511311442 is a wasteful number, since it uses less digits than its factorization.

245344511311442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122672255655723.

The product of its digits is 921600, while the sum is 44.

Adding to 245344511311442 its reverse (244113115443542), we get a palindrome (489457626754984).

The spelling of 245344511311442 in words is "two hundred forty-five trillion, three hundred forty-four billion, five hundred eleven million, three hundred eleven thousand, four hundred forty-two".