1045567781793 has 32 divisors (see below), whose sum is σ = 1583239996800. Its totient is φ = 681752328768.

The previous prime is 1045567781777. The next prime is 1045567781813. The reversal of 1045567781793 is 3971877655401.

1045567781793 is a `hidden beast` number, since 1 + 0 + 4 + 556 + 7 + 7 + 8 + 1 + 79 + 3 = 666.

It is not a de Polignac number, because 1045567781793 - 2⁴ = 1045567781777 is a prime.

It is a Smith number, since the sum of its digits (63) 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 1045567781793.

It is not an unprimeable number, because it can be changed into a prime (1045567781743) 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, 1352046 + ... + 1979687.

It is an arithmetic number, because the mean of its divisors is an integer number (49476249900).

Almost surely, 2^{1045567781793} is an apocalyptic number.

It is an amenable number.

1045567781793 is a deficient number, since it is larger than the sum of its proper divisors (537672215007).

1045567781793 is a wasteful number, since it uses less digits than its factorization.

1045567781793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331998 (or 3331992 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 63.

The spelling of 1045567781793 in words is "one trillion, forty-five billion, five hundred sixty-seven million, seven hundred eighty-one thousand, seven hundred ninety-three".