1057267984681 has 12 divisors (see below), whose sum is σ = 1171949836032. Its totient is φ = 951811581248.

The previous prime is 1057267984679. The next prime is 1057267984781. The reversal of 1057267984681 is 1864897627501.

It is not a de Polignac number, because 1057267984681 - 2¹ = 1057267984679 is a prime.

It is a super-2 number, since 2×1057267984681² (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 (1057267984631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79523065 + ... + 79536358.

It is an arithmetic number, because the mean of its divisors is an integer number (97662486336).

Almost surely, 2^{1057267984681} is an apocalyptic number.

It is an amenable number.

1057267984681 is a deficient number, since it is larger than the sum of its proper divisors (114681851351).

1057267984681 is a wasteful number, since it uses less digits than its factorization.

1057267984681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159059480 (or 159059463 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 64.

The spelling of 1057267984681 in words is "one trillion, fifty-seven billion, two hundred sixty-seven million, nine hundred eighty-four thousand, six hundred eighty-one".