1851048442246 has 4 divisors (see below), whose sum is σ = 2776572663372. Its totient is φ = 925524221122.

The previous prime is 1851048442193. The next prime is 1851048442277. The reversal of 1851048442246 is 6422448401581.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1851048442246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 462762110560 + ... + 462762110563.

It is an arithmetic number, because the mean of its divisors is an integer number (694143165843).

Almost surely, 2^{1851048442246} is an apocalyptic number.

1851048442246 is a deficient number, since it is larger than the sum of its proper divisors (925524221126).

1851048442246 is an equidigital number, since it uses as much as digits as its factorization.

1851048442246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925524221125.

The product of its (nonzero) digits is 1966080, while the sum is 49.

The spelling of 1851048442246 in words is "one trillion, eight hundred fifty-one billion, forty-eight million, four hundred forty-two thousand, two hundred forty-six".