40856215436 has 12 divisors (see below), whose sum is σ = 72403420320. Its totient is φ = 20169523920.

The previous prime is 40856215429. The next prime is 40856215441. The reversal of 40856215436 is 63451265804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64645595 + ... + 64646226.

It is an arithmetic number, because the mean of its divisors is an integer number (6033618360).

Almost surely, 2^40856215436 is an apocalyptic number.

It is an amenable number.

40856215436 is a deficient number, since it is larger than the sum of its proper divisors (31547204884).

40856215436 is a wasteful number, since it uses less digits than its factorization.

40856215436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129291904 (or 129291902 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 40856215436 in words is "forty billion, eight hundred fifty-six million, two hundred fifteen thousand, four hundred thirty-six".