11974513497242 has 4 divisors (see below), whose sum is σ = 17961770245866. Its totient is φ = 5987256748620.

The previous prime is 11974513497229. The next prime is 11974513497259. The reversal of 11974513497242 is 24279431547911.

It is a Cunningham number, because it is equal to 3460421²+1.

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., 11974513497241 + 1 = 3460421^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2993628374309 + ... + 2993628374312.

Almost surely, 2^{11974513497242} is an apocalyptic number.

11974513497242 is a deficient number, since it is larger than the sum of its proper divisors (5987256748624).

11974513497242 is an equidigital number, since it uses as much as digits as its factorization.

11974513497242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5987256748623.

The product of its digits is 15240960, while the sum is 59.

The spelling of 11974513497242 in words is "eleven trillion, nine hundred seventy-four billion, five hundred thirteen million, four hundred ninety-seven thousand, two hundred forty-two".