40153543821 has 24 divisors (see below), whose sum is σ = 58139040960. Its totient is φ = 26704728000.

The previous prime is 40153543777. The next prime is 40153543823. The reversal of 40153543821 is 12834535104.

40153543821 is a `hidden beast` number, since 4 + 0 + 1 + 535 + 43 + 82 + 1 = 666.

40153543821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40153543821 - 2¹³ = 40153535629 is a prime.

It is a super-2 number, since 2×40153543821² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40153543823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13039560 + ... + 13042638.

It is an arithmetic number, because the mean of its divisors is an integer number (2422460040).

Almost surely, 2^40153543821 is an apocalyptic number.

It is an amenable number.

40153543821 is a deficient number, since it is larger than the sum of its proper divisors (17985497139).

40153543821 is a wasteful number, since it uses less digits than its factorization.

40153543821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097 (or 6094 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 40153543821 in words is "forty billion, one hundred fifty-three million, five hundred forty-three thousand, eight hundred twenty-one".