1445766864378 has 64 divisors (see below), whose sum is σ = 3205738736640. Its totient is φ = 432626147712.

The previous prime is 1445766864317. The next prime is 1445766864391. The reversal of 1445766864378 is 8734686675441.

It is a super-2 number, since 2×1445766864378² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2296075 + ... + 2857182.

It is an arithmetic number, because the mean of its divisors is an integer number (50089667760).

Almost surely, 2^{1445766864378} is an apocalyptic number.

1445766864378 is an abundant number, since it is smaller than the sum of its proper divisors (1759971872262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1445766864378 is a wasteful number, since it uses less digits than its factorization.

1445766864378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153411.

The product of its digits is 650280960, while the sum is 69.

The spelling of 1445766864378 in words is "one trillion, four hundred forty-five billion, seven hundred sixty-six million, eight hundred sixty-four thousand, three hundred seventy-eight".