2551074642442 has 8 divisors (see below), whose sum is σ = 3839672073636. Its totient is φ = 1271183951232.

The previous prime is 2551074642371. The next prime is 2551074642449. The reversal of 2551074642442 is 2442464701552.

It can be written as a sum of positive squares in 2 ways, for example, as 2353919994001 + 197154648441 = 1534249^2 + 444021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2551074642392 and 2551074642401.

It is not an unprimeable number, because it can be changed into a prime (2551074642449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176684263 + ... + 2176685434.

Almost surely, 2^{2551074642442} is an apocalyptic number.

2551074642442 is a deficient number, since it is larger than the sum of its proper divisors (1288597431194).

2551074642442 is a wasteful number, since it uses less digits than its factorization.

2551074642442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353369992.

The product of its (nonzero) digits is 2150400, while the sum is 46.

The spelling of 2551074642442 in words is "two trillion, five hundred fifty-one billion, seventy-four million, six hundred forty-two thousand, four hundred forty-two".