105053431618 has 16 divisors (see below), whose sum is σ = 159097301496. Its totient is φ = 52021715200.

The previous prime is 105053431597. The next prime is 105053431631. The reversal of 105053431618 is 816134350501.

It can be written as a sum of positive squares in 4 ways, for example, as 7505276689 + 97548154929 = 86633^2 + 312327^2 .

It is a super-2 number, since 2×105053431618² (a number of 23 digits) contains 22 as substring.

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, 115380 + ... + 472672.

Almost surely, 2^105053431618 is an apocalyptic number.

105053431618 is a deficient number, since it is larger than the sum of its proper divisors (54043869878).

105053431618 is a wasteful number, since it uses less digits than its factorization.

105053431618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358709.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 105053431618 in words is "one hundred five billion, fifty-three million, four hundred thirty-one thousand, six hundred eighteen".