40105780412 has 48 divisors (see below), whose sum is σ = 76332641280. Its totient is φ = 18367689600.

The previous prime is 40105780397. The next prime is 40105780433. The reversal of 40105780412 is 21408750104.

It is a happy number.

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, 2751608 + ... + 2766144.

It is an arithmetic number, because the mean of its divisors is an integer number (1590263360).

Almost surely, 2^40105780412 is an apocalyptic number.

It is an amenable number.

40105780412 is a deficient number, since it is larger than the sum of its proper divisors (36226860868).

40105780412 is a wasteful number, since it uses less digits than its factorization.

40105780412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15762 (or 15760 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The spelling of 40105780412 in words is "forty billion, one hundred five million, seven hundred eighty thousand, four hundred twelve".