1445494712057 has 4 divisors (see below), whose sum is σ = 1576903322256. Its totient is φ = 1314086101860.

The previous prime is 1445494712009. The next prime is 1445494712059. The reversal of 1445494712057 is 7502174945441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1445494712057 - 2⁶ = 1445494711993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445494712059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65704305083 + ... + 65704305104.

It is an arithmetic number, because the mean of its divisors is an integer number (394225830564).

Almost surely, 2^{1445494712057} is an apocalyptic number.

It is an amenable number.

1445494712057 is a deficient number, since it is larger than the sum of its proper divisors (131408610199).

1445494712057 is a wasteful number, since it uses less digits than its factorization.

1445494712057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131408610198.

The product of its (nonzero) digits is 5644800, while the sum is 53.

The spelling of 1445494712057 in words is "one trillion, four hundred forty-five billion, four hundred ninety-four million, seven hundred twelve thousand, fifty-seven".