40534540000000 has 144 divisors (see below), whose sum is σ = 101138218429248. Its totient is φ = 16213808000000.

The previous prime is 40534539999883. The next prime is 40534540000049. The reversal of 40534540000000 is 4543504.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 40534540000000.

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, 18986637 + ... + 21013363.

It is an arithmetic number, because the mean of its divisors is an integer number (702348739092).

Almost surely, 2^{40534540000000} is an apocalyptic number.

40534540000000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40534540000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50569109214624).

40534540000000 is an abundant number, since it is smaller than the sum of its proper divisors (60603678429248).

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

40534540000000 is an frugal number, since it uses more digits than its factorization.

40534540000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026778 (or 2026734 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 40534540000000 its reverse (4543504), we get a palindrome (40534544543504).

The spelling of 40534540000000 in words is "forty trillion, five hundred thirty-four billion, five hundred forty million", and thus it is an aban number.