10438582618 has 4 divisors (see below), whose sum is σ = 15657873930. Its totient is φ = 5219291308.

The previous prime is 10438582589. The next prime is 10438582631. The reversal of 10438582618 is 81628583401.

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

It can be written as a sum of positive squares in only one way, i.e., 10298799289 + 139783329 = 101483^2 + 11823^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2609645653 + ... + 2609645656.

Almost surely, 2^10438582618 is an apocalyptic number.

10438582618 is a deficient number, since it is larger than the sum of its proper divisors (5219291312).

10438582618 is an equidigital number, since it uses as much as digits as its factorization.

10438582618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5219291311.

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 10438582618 in words is "ten billion, four hundred thirty-eight million, five hundred eighty-two thousand, six hundred eighteen".