40124124520 has 32 divisors (see below), whose sum is σ = 90552057120. Its totient is φ = 16001156160.

The previous prime is 40124124517. The next prime is 40124124533. The reversal of 40124124520 is 2542142104.

40124124520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1502022 + ... + 1528501.

It is an arithmetic number, because the mean of its divisors is an integer number (2829751785).

Almost surely, 2^40124124520 is an apocalyptic number.

40124124520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40124124520 is an abundant number, since it is smaller than the sum of its proper divisors (50427932600).

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

40124124520 is a wasteful number, since it uses less digits than its factorization.

40124124520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030865 (or 3030861 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 40124124520 its reverse (2542142104), we get a palindrome (42666266624).

The spelling of 40124124520 in words is "forty billion, one hundred twenty-four million, one hundred twenty-four thousand, five hundred twenty".