40511512536 has 32 divisors (see below), whose sum is σ = 110485944000. Its totient is φ = 12276215840.

The previous prime is 40511512529. The next prime is 40511512537. The reversal of 40511512536 is 63521511504.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 40511512497 and 40511512506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40511512537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76726086 + ... + 76726613.

It is an arithmetic number, because the mean of its divisors is an integer number (3452685750).

Almost surely, 2^40511512536 is an apocalyptic number.

It is an amenable number.

40511512536 is an abundant number, since it is smaller than the sum of its proper divisors (69974431464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40511512536 is a wasteful number, since it uses less digits than its factorization.

40511512536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153452719 (or 153452715 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 40511512536 in words is "forty billion, five hundred eleven million, five hundred twelve thousand, five hundred thirty-six".