5732791281 has 40 divisors (see below), whose sum is σ = 10102946304. Its totient is φ = 3170197440.

The previous prime is 5732791243. The next prime is 5732791307. The reversal of 5732791281 is 1821972375.

5732791281 is a `hidden beast` number, since 573 + 2 + 79 + 1 + 2 + 8 + 1 = 666.

It is not a de Polignac number, because 5732791281 - 2¹⁷ = 5732660209 is a prime.

It is a super-2 number, since 2×5732791281² = 65729791743019241922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5732791781) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 145500 + ... + 180653.

Almost surely, 2^5732791281 is an apocalyptic number.

It is an amenable number.

5732791281 is a deficient number, since it is larger than the sum of its proper divisors (4370155023).

5732791281 is a wasteful number, since it uses less digits than its factorization.

5732791281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326203 (or 326194 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 5732791281 is about 75715.1984808863. The cubic root of 5732791281 is about 1789.7349129410.

The spelling of 5732791281 in words is "five billion, seven hundred thirty-two million, seven hundred ninety-one thousand, two hundred eighty-one".