1051165782917 has 8 divisors (see below), whose sum is σ = 1062661085976. Its totient is φ = 1039725879552.

The previous prime is 1051165782913. The next prime is 1051165782943. The reversal of 1051165782917 is 7192875611501.

It can be written as a sum of positive squares in 4 ways, for example, as 164402677156 + 886763105761 = 405466^2 + 941681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1051165782917 - 2² = 1051165782913 is a prime.

It is a super-2 number, since 2×1051165782917² (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 (1051165782913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13811768 + ... + 13887665.

It is an arithmetic number, because the mean of its divisors is an integer number (132832635747).

Almost surely, 2^{1051165782917} is an apocalyptic number.

It is an amenable number.

1051165782917 is a deficient number, since it is larger than the sum of its proper divisors (11495303059).

1051165782917 is a wasteful number, since it uses less digits than its factorization.

1051165782917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27699847.

The product of its (nonzero) digits is 1058400, while the sum is 53.

The spelling of 1051165782917 in words is "one trillion, fifty-one billion, one hundred sixty-five million, seven hundred eighty-two thousand, nine hundred seventeen".