40723531832 has 8 divisors (see below), whose sum is σ = 76356622200. Its totient is φ = 20361765912.

The previous prime is 40723531819. The next prime is 40723531859. The reversal of 40723531832 is 23813532704.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2545220732 + ... + 2545220747.

It is an arithmetic number, because the mean of its divisors is an integer number (9544577775).

Almost surely, 2^40723531832 is an apocalyptic number.

It is an amenable number.

40723531832 is a deficient number, since it is larger than the sum of its proper divisors (35633090368).

40723531832 is a wasteful number, since it uses less digits than its factorization.

40723531832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5090441485 (or 5090441481 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 40723531832 in words is "forty billion, seven hundred twenty-three million, five hundred thirty-one thousand, eight hundred thirty-two".