40021837089 has 16 divisors (see below), whose sum is σ = 57519134400. Its totient is φ = 24606588096.

The previous prime is 40021837081. The next prime is 40021837091. The reversal of 40021837089 is 98073812004.

It is not a de Polignac number, because 40021837089 - 2³ = 40021837081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40021837089.

It is not an unprimeable number, because it can be changed into a prime (40021837081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419419 + ... + 505920.

It is an arithmetic number, because the mean of its divisors is an integer number (3594945900).

Almost surely, 2^40021837089 is an apocalyptic number.

It is an amenable number.

40021837089 is a deficient number, since it is larger than the sum of its proper divisors (17497297311).

40021837089 is a wasteful number, since it uses less digits than its factorization.

40021837089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926464.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 40021837089 in words is "forty billion, twenty-one million, eight hundred thirty-seven thousand, eighty-nine".