105257044451 has 24 divisors (see below), whose sum is σ = 118600317360. Its totient is φ = 92854529856.

The previous prime is 105257044447. The next prime is 105257044471. The reversal of 105257044451 is 154440752501.

It is not a de Polignac number, because 105257044451 - 2² = 105257044447 is a prime.

It is a super-2 number, since 2×105257044451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105257044441) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8652065 + ... + 8664221.

It is an arithmetic number, because the mean of its divisors is an integer number (4941679890).

Almost surely, 2^105257044451 is an apocalyptic number.

105257044451 is a deficient number, since it is larger than the sum of its proper divisors (13343272909).

105257044451 is a wasteful number, since it uses less digits than its factorization.

105257044451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13475 (or 13452 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 38.

Adding to 105257044451 its reverse (154440752501), we get a palindrome (259697796952).

The spelling of 105257044451 in words is "one hundred five billion, two hundred fifty-seven million, forty-four thousand, four hundred fifty-one".