40021601143 has 4 divisors (see below), whose sum is σ = 40022342568. Its totient is φ = 40020859720.

The previous prime is 40021601141. The next prime is 40021601153. The reversal of 40021601143 is 34110612004.

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

It is a cyclic number.

It is not a de Polignac number, because 40021601143 - 2¹ = 40021601141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40021601141) 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, 282793 + ... + 400018.

It is an arithmetic number, because the mean of its divisors is an integer number (10005585642).

Almost surely, 2^40021601143 is an apocalyptic number.

40021601143 is a deficient number, since it is larger than the sum of its proper divisors (741425).

40021601143 is an equidigital number, since it uses as much as digits as its factorization.

40021601143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741424.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 40021601143 in words is "forty billion, twenty-one million, six hundred one thousand, one hundred forty-three".