105245644273452 has 72 divisors (see below), whose sum is σ = 271064756669616. Its totient is φ = 34418996786304.

The previous prime is 105245644273433. The next prime is 105245644273457. The reversal of 105245644273452 is 254372446542501.

105245644273452 is a `hidden beast` number, since 1 + 0 + 5 + 2 + 4 + 564 + 4 + 2 + 73 + 4 + 5 + 2 = 666.

It is a super-2 number, since 2×105245644273452² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105245644273457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69150603 + ... + 70656189.

It is an arithmetic number, because the mean of its divisors is an integer number (3764788287078).

Almost surely, 2^{105245644273452} is an apocalyptic number.

105245644273452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105245644273452 is an abundant number, since it is smaller than the sum of its proper divisors (165819112396164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105245644273452 is a wasteful number, since it uses less digits than its factorization.

105245644273452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542287 (or 1542282 counting only the distinct ones).

The product of its (nonzero) digits is 32256000, while the sum is 54.

The spelling of 105245644273452 in words is "one hundred five trillion, two hundred forty-five billion, six hundred forty-four million, two hundred seventy-three thousand, four hundred fifty-two".