40570133281 has 4 divisors (see below), whose sum is σ = 40698115092. Its totient is φ = 40442151472.

The previous prime is 40570133269. The next prime is 40570133347. The reversal of 40570133281 is 18233107504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14782912225 + 25787221056 = 121585^2 + 160584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40570133281 is a prime.

It is a super-2 number, since 2×40570133281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40570133221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63990430 + ... + 63991063.

It is an arithmetic number, because the mean of its divisors is an integer number (10174528773).

Almost surely, 2^40570133281 is an apocalyptic number.

It is an amenable number.

40570133281 is a deficient number, since it is larger than the sum of its proper divisors (127981811).

40570133281 is a wasteful number, since it uses less digits than its factorization.

40570133281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127981810.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 40570133281 in words is "forty billion, five hundred seventy million, one hundred thirty-three thousand, two hundred eighty-one".