1013571738169 has 15 divisors (see below), whose sum is σ = 1033790534777. Its totient is φ = 993747567936.

The previous prime is 1013571738131. The next prime is 1013571738217. The reversal of 1013571738169 is 9618371753101.

It is a happy number.

The square root of 1013571738169 is 1006763.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 10529427769 + 1003042310400 = 102613^2 + 1001520^2 .

It is not a de Polignac number, because 1013571738169 - 2³⁹ = 463815924281 is a prime.

It is a super-2 number, since 2×1013571738169² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013571738119) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 9472633014 + ... + 9472633120.

Almost surely, 2^{1013571738169} is an apocalyptic number.

1013571738169 is the 1006763-rd square number.

1013571738169 is the 503382-nd centered octagonal number.

It is an amenable number.

1013571738169 is a deficient number, since it is larger than the sum of its proper divisors (20218796608).

1013571738169 is an frugal number, since it uses more digits than its factorization.

1013571738169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 52.

The spelling of 1013571738169 in words is "one trillion, thirteen billion, five hundred seventy-one million, seven hundred thirty-eight thousand, one hundred sixty-nine".