40217463578 has 8 divisors (see below), whose sum is σ = 60334209300. Its totient is φ = 20106060480.

The previous prime is 40217463577. The next prime is 40217463613. The reversal of 40217463578 is 87536471204.

40217463578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29588472169 + 10628991409 = 172013^2 + 103097^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40217463577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316783 + ... + 1346978.

Almost surely, 2^40217463578 is an apocalyptic number.

40217463578 is a deficient number, since it is larger than the sum of its proper divisors (20116745722).

40217463578 is a wasteful number, since it uses less digits than its factorization.

40217463578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671312.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 40217463578 in words is "forty billion, two hundred seventeen million, four hundred sixty-three thousand, five hundred seventy-eight".