40673443780 has 12 divisors (see below), whose sum is σ = 85414231980. Its totient is φ = 16269377504.

The previous prime is 40673443771. The next prime is 40673443819. The reversal of 40673443780 is 8734437604.

It can be written as a sum of positive squares in 2 ways, for example, as 5112536004 + 35560907776 = 71502^2 + 188576^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40673443780.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016836075 + ... + 1016836114.

It is an arithmetic number, because the mean of its divisors is an integer number (7117852665).

Almost surely, 2^40673443780 is an apocalyptic number.

It is an amenable number.

40673443780 is an abundant number, since it is smaller than the sum of its proper divisors (44740788200).

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

40673443780 is a wasteful number, since it uses less digits than its factorization.

40673443780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033672198 (or 2033672196 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 46.

The spelling of 40673443780 in words is "forty billion, six hundred seventy-three million, four hundred forty-three thousand, seven hundred eighty".