40487671445 has 8 divisors (see below), whose sum is σ = 52322529336. Its totient is φ = 29898588096.

The previous prime is 40487671381. The next prime is 40487671457. The reversal of 40487671445 is 54417678404.

It can be written as a sum of positive squares in 4 ways, for example, as 1899390724 + 38588280721 = 43582^2 + 196439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40487671445 - 2⁶ = 40487671381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40487671393 and 40487671402.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 311443562 + ... + 311443691.

It is an arithmetic number, because the mean of its divisors is an integer number (6540316167).

Almost surely, 2^40487671445 is an apocalyptic number.

It is an amenable number.

40487671445 is a deficient number, since it is larger than the sum of its proper divisors (11834857891).

40487671445 is a wasteful number, since it uses less digits than its factorization.

40487671445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622887271.

The product of its (nonzero) digits is 3010560, while the sum is 50.

The spelling of 40487671445 in words is "forty billion, four hundred eighty-seven million, six hundred seventy-one thousand, four hundred forty-five".