1311445461446 has 4 divisors (see below), whose sum is σ = 1967168192172. Its totient is φ = 655722730722.

The previous prime is 1311445461437. The next prime is 1311445461451. The reversal of 1311445461446 is 6441645441131.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1311445461397 and 1311445461406.

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, 327861365360 + ... + 327861365363.

It is an arithmetic number, because the mean of its divisors is an integer number (491792048043).

Almost surely, 2^{1311445461446} is an apocalyptic number.

1311445461446 is a deficient number, since it is larger than the sum of its proper divisors (655722730726).

1311445461446 is an equidigital number, since it uses as much as digits as its factorization.

1311445461446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655722730725.

The product of its digits is 552960, while the sum is 44.

The spelling of 1311445461446 in words is "one trillion, three hundred eleven billion, four hundred forty-five million, four hundred sixty-one thousand, four hundred forty-six".