1043544991473 has 32 divisors (see below), whose sum is σ = 1575326188800. Its totient is φ = 682499271168.

The previous prime is 1043544991427. The next prime is 1043544991481. The reversal of 1043544991473 is 3741994453401.

It is a happy number.

1043544991473 is a `hidden beast` number, since 1 + 0 + 4 + 3 + 5 + 4 + 499 + 147 + 3 = 666.

It is not a de Polignac number, because 1043544991473 - 2²⁴ = 1043528214257 is a prime.

It is a super-2 number, since 2×1043544991473² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1043544990473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16119393 + ... + 16184001.

It is an arithmetic number, because the mean of its divisors is an integer number (49228943400).

Almost surely, 2^{1043544991473} is an apocalyptic number.

It is an amenable number.

1043544991473 is a deficient number, since it is larger than the sum of its proper divisors (531781197327).

1043544991473 is a wasteful number, since it uses less digits than its factorization.

1043544991473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75958 (or 75952 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 1043544991473 in words is "one trillion, forty-three billion, five hundred forty-four million, nine hundred ninety-one thousand, four hundred seventy-three".