40013523412 has 12 divisors (see below), whose sum is σ = 70095787776. Its totient is φ = 19986155480.

The previous prime is 40013523391. The next prime is 40013523419. The reversal of 40013523412 is 21432531004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013523419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5147188 + ... + 5154955.

It is an arithmetic number, because the mean of its divisors is an integer number (5841315648).

Almost surely, 2^40013523412 is an apocalyptic number.

It is an amenable number.

40013523412 is a deficient number, since it is larger than the sum of its proper divisors (30082264364).

40013523412 is a wasteful number, since it uses less digits than its factorization.

40013523412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10303118 (or 10303116 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The spelling of 40013523412 in words is "forty billion, thirteen million, five hundred twenty-three thousand, four hundred twelve".