1445243723802 has 32 divisors (see below), whose sum is σ = 3289985717760. Its totient is φ = 469997958240.

The previous prime is 1445243723669. The next prime is 1445243723813. The reversal of 1445243723802 is 2083273425441.

1445243723802 is a `hidden beast` number, since 1 + 44 + 524 + 3 + 7 + 2 + 3 + 80 + 2 = 666.

It is a super-2 number, since 2×1445243723802² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326385258 + ... + 326389685.

It is an arithmetic number, because the mean of its divisors is an integer number (102812053680).

Almost surely, 2^{1445243723802} is an apocalyptic number.

1445243723802 is an abundant number, since it is smaller than the sum of its proper divisors (1844741993958).

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

1445243723802 is a wasteful number, since it uses less digits than its factorization.

1445243723802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652774995 (or 652774989 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 1445243723802 in words is "one trillion, four hundred forty-five billion, two hundred forty-three million, seven hundred twenty-three thousand, eight hundred two".