1081676961369 has 27 divisors (see below), whose sum is σ = 1633415587167. Its totient is φ = 689719257216.

The previous prime is 1081676961361. The next prime is 1081676961397. The reversal of 1081676961369 is 9631696761801.

The square root of 1081676961369 is 1040037.

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

1081676961369 is a `hidden beast` number, since 1 + 0 + 8 + 1 + 6 + 7 + 6 + 9 + 613 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 521406747225 + 560270214144 = 722085^2 + 748512^2 .

It is not a de Polignac number, because 1081676961369 - 2³ = 1081676961361 is a prime.

It is a super-2 number, since 2×1081676961369² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1081676961361) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 71755017 + ... + 71770089.

Almost surely, 2^{1081676961369} is an apocalyptic number.

1081676961369 is the 1040037-th square number.

1081676961369 is the 520019-th centered octagonal number.

It is an amenable number.

1081676961369 is a deficient number, since it is larger than the sum of its proper divisors (551738625798).

1081676961369 is an frugal number, since it uses more digits than its factorization.

1081676961369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30198 (or 15099 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 1081676961369 in words is "one trillion, eighty-one billion, six hundred seventy-six million, nine hundred sixty-one thousand, three hundred sixty-nine".