40712490820 has 24 divisors (see below), whose sum is σ = 85501876824. Its totient is φ = 16283920896.

The previous prime is 40712490809. The next prime is 40712490893. The reversal of 40712490820 is 2809421704.

It can be written as a sum of positive squares in 4 ways, for example, as 7092334656 + 33620156164 = 84216^2 + 183358^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40712490820.

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 in 7 ways as a sum of consecutive naturals, for example, 289342 + ... + 406378.

It is an arithmetic number, because the mean of its divisors is an integer number (3562578201).

Almost surely, 2^40712490820 is an apocalyptic number.

It is an amenable number.

40712490820 is an abundant number, since it is smaller than the sum of its proper divisors (44789386004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40712490820 is a wasteful number, since it uses less digits than its factorization.

40712490820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134439 (or 134437 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 40712490820 in words is "forty billion, seven hundred twelve million, four hundred ninety thousand, eight hundred twenty".