41452521638 has 16 divisors (see below), whose sum is σ = 67836412224. Its totient is φ = 18840662760.

The previous prime is 41452521631. The next prime is 41452521647. The reversal of 41452521638 is 83612525414.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 41452521595 and 41452521604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41452521631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272081 + ... + 396147.

It is an arithmetic number, because the mean of its divisors is an integer number (4239775764).

Almost surely, 2^41452521638 is an apocalyptic number.

41452521638 is a deficient number, since it is larger than the sum of its proper divisors (26383890586).

41452521638 is a wasteful number, since it uses less digits than its factorization.

41452521638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139267.

The product of its digits is 230400, while the sum is 41.

The spelling of 41452521638 in words is "forty-one billion, four hundred fifty-two million, five hundred twenty-one thousand, six hundred thirty-eight".