40512135540 has 48 divisors (see below), whose sum is σ = 119404192320. Its totient is φ = 10234644480.

The previous prime is 40512135527. The next prime is 40512135551. The reversal of 40512135540 is 4553121504.

40512135540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40512135540² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40512135498 and 40512135507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17767341 + ... + 17769620.

It is an arithmetic number, because the mean of its divisors is an integer number (2487587340).

Almost surely, 2^40512135540 is an apocalyptic number.

It is an amenable number.

40512135540 is an abundant number, since it is smaller than the sum of its proper divisors (78892056780).

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

40512135540 is a wasteful number, since it uses less digits than its factorization.

40512135540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35536992 (or 35536990 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 40512135540 in words is "forty billion, five hundred twelve million, one hundred thirty-five thousand, five hundred forty".