40821320756 has 24 divisors (see below), whose sum is σ = 71618776320. Its totient is φ = 20358853632.

The previous prime is 40821320723. The next prime is 40821320767. The reversal of 40821320756 is 65702312804.

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 7 ways as a sum of consecutive naturals, for example, 6620531 + ... + 6626693.

It is an arithmetic number, because the mean of its divisors is an integer number (2984115680).

Almost surely, 2^40821320756 is an apocalyptic number.

It is an amenable number.

40821320756 is a deficient number, since it is larger than the sum of its proper divisors (30797455564).

40821320756 is a wasteful number, since it uses less digits than its factorization.

40821320756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10103 (or 10101 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 40821320756 in words is "forty billion, eight hundred twenty-one million, three hundred twenty thousand, seven hundred fifty-six".