40933648081 has 4 divisors (see below), whose sum is σ = 42039962932. Its totient is φ = 39827333232.

The previous prime is 40933648073. The next prime is 40933648111. The reversal of 40933648081 is 18084633904.

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 33093431056 + 7840217025 = 181916^2 + 88545^2 .

It is a cyclic number.

It is not a de Polignac number, because 40933648081 - 2³ = 40933648073 is a prime.

It is a super-2 number, since 2×40933648081² (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 (40933648001) 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, 553157370 + ... + 553157443.

It is an arithmetic number, because the mean of its divisors is an integer number (10509990733).

Almost surely, 2^40933648081 is an apocalyptic number.

It is an amenable number.

40933648081 is a deficient number, since it is larger than the sum of its proper divisors (1106314851).

40933648081 is a wasteful number, since it uses less digits than its factorization.

40933648081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106314850.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 40933648081 in words is "forty billion, nine hundred thirty-three million, six hundred forty-eight thousand, eighty-one".