45043554856864 has 24 divisors (see below), whose sum is σ = 88703485738308. Its totient is φ = 22515685463040.

The previous prime is 45043554856849. The next prime is 45043554856889. The reversal of 45043554856864 is 46865845534054.

It can be written as a sum of positive squares in 2 ways, for example, as 42896474211600 + 2147080645264 = 6549540^2 + 1465292^2 .

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 45043554856864.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190253767 + ... + 190490374.

Almost surely, 2^{45043554856864} is an apocalyptic number.

It is an amenable number.

45043554856864 is a deficient number, since it is larger than the sum of its proper divisors (43659930881444).

45043554856864 is a wasteful number, since it uses less digits than its factorization.

45043554856864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380747848 (or 380747840 counting only the distinct ones).

The product of its (nonzero) digits is 1105920000, while the sum is 67.

The spelling of 45043554856864 in words is "forty-five trillion, forty-three billion, five hundred fifty-four million, eight hundred fifty-six thousand, eight hundred sixty-four".