1445671272779 has 2 divisors, whose sum is σ = 1445671272780. Its totient is φ = 1445671272778.

The previous prime is 1445671272769. The next prime is 1445671272791. The reversal of 1445671272779 is 9772721765441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1445671272779 - 2²⁸ = 1445402837323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1445671272709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722835636389 + 722835636390.

It is an arithmetic number, because the mean of its divisors is an integer number (722835636390).

Almost surely, 2^{1445671272779} is an apocalyptic number.

1445671272779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445671272779 is an equidigital number, since it uses as much as digits as its factorization.

1445671272779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41489280, while the sum is 62.

The spelling of 1445671272779 in words is "one trillion, four hundred forty-five billion, six hundred seventy-one million, two hundred seventy-two thousand, seven hundred seventy-nine".