1001670946281 has 12 divisors (see below), whose sum is σ = 1460131961860. Its totient is φ = 661654202400.

The previous prime is 1001670946223. The next prime is 1001670946313. The reversal of 1001670946281 is 1826490761001.

1001670946281 is a `hidden beast` number, since 1 + 0 + 0 + 16 + 7 + 0 + 9 + 4 + 628 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 779750811225 + 221920135056 = 883035^2 + 471084^2 .

It is not a de Polignac number, because 1001670946281 - 2¹³ = 1001670938089 is a prime.

It is a super-2 number, since 2×1001670946281² (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 (1001670946201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510534670 + ... + 510536631.

Almost surely, 2^{1001670946281} is an apocalyptic number.

It is an amenable number.

1001670946281 is a deficient number, since it is larger than the sum of its proper divisors (458461015579).

1001670946281 is a wasteful number, since it uses less digits than its factorization.

1001670946281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021071416 (or 1021071413 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 1001670946281 in words is "one trillion, one billion, six hundred seventy million, nine hundred forty-six thousand, two hundred eighty-one".