40587905473 has 4 divisors (see below), whose sum is σ = 40590687060. Its totient is φ = 40585123888.

The previous prime is 40587905471. The next prime is 40587905509. The reversal of 40587905473 is 37450978504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21882693184 + 18705212289 = 147928^2 + 136767^2 .

It is a cyclic number.

It is not a de Polignac number, because 40587905473 - 2¹ = 40587905471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40587905473.

It is not an unprimeable number, because it can be changed into a prime (40587905471) by changing a digit.

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, 1368790 + ... + 1398127.

It is an arithmetic number, because the mean of its divisors is an integer number (10147671765).

Almost surely, 2^40587905473 is an apocalyptic number.

It is an amenable number.

40587905473 is a deficient number, since it is larger than the sum of its proper divisors (2781587).

40587905473 is a wasteful number, since it uses less digits than its factorization.

40587905473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781586.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 40587905473 in words is "forty billion, five hundred eighty-seven million, nine hundred five thousand, four hundred seventy-three".