1053445378765 has 16 divisors (see below), whose sum is σ = 1374854540976. Its totient is φ = 770226624000.

The previous prime is 1053445378703. The next prime is 1053445378771. The reversal of 1053445378765 is 5678735443501.

It can be written as a sum of positive squares in 8 ways, for example, as 83925510601 + 969519868164 = 289699^2 + 984642^2 .

It is not a de Polignac number, because 1053445378765 - 2⁷ = 1053445378637 is a prime.

It is a super-2 number, since 2×1053445378765² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80225376 + ... + 80238505.

It is an arithmetic number, because the mean of its divisors is an integer number (85928408811).

Almost surely, 2^{1053445378765} is an apocalyptic number.

It is an amenable number.

1053445378765 is a deficient number, since it is larger than the sum of its proper divisors (321409162211).

1053445378765 is a wasteful number, since it uses less digits than its factorization.

1053445378765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160464000.

The product of its (nonzero) digits is 42336000, while the sum is 58.

The spelling of 1053445378765 in words is "one trillion, fifty-three billion, four hundred forty-five million, three hundred seventy-eight thousand, seven hundred sixty-five".