1053866458781 has 4 divisors (see below), whose sum is σ = 1054237149792. Its totient is φ = 1053495767772.

The previous prime is 1053866458769. The next prime is 1053866458817. The reversal of 1053866458781 is 1878546683501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1053866458781 - 2³⁴ = 1036686589597 is a prime.

It is a super-2 number, since 2×1053866458781² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053866452781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185341241 + ... + 185346926.

It is an arithmetic number, because the mean of its divisors is an integer number (263559287448).

Almost surely, 2^{1053866458781} is an apocalyptic number.

It is an amenable number.

1053866458781 is a deficient number, since it is larger than the sum of its proper divisors (370691011).

1053866458781 is an equidigital number, since it uses as much as digits as its factorization.

1053866458781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370691010.

The product of its (nonzero) digits is 38707200, while the sum is 62.

The spelling of 1053866458781 in words is "one trillion, fifty-three billion, eight hundred sixty-six million, four hundred fifty-eight thousand, seven hundred eighty-one".