1445948917918 has 16 divisors (see below), whose sum is σ = 2228334603264. Its totient is φ = 703354938040.

The previous prime is 1445948917867. The next prime is 1445948917921. The reversal of 1445948917918 is 8197198495441.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46039498 + ... + 46070893.

It is an arithmetic number, because the mean of its divisors is an integer number (139270912704).

Almost surely, 2^{1445948917918} is an apocalyptic number.

1445948917918 is a deficient number, since it is larger than the sum of its proper divisors (782385685346).

1445948917918 is a wasteful number, since it uses less digits than its factorization.

1445948917918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92110607.

The product of its digits is 104509440, while the sum is 70.

The spelling of 1445948917918 in words is "one trillion, four hundred forty-five billion, nine hundred forty-eight million, nine hundred seventeen thousand, nine hundred eighteen".