105444025542 has 24 divisors (see below), whose sum is σ = 231871939416. Its totient is φ = 34623410976.

The previous prime is 105444025523. The next prime is 105444025543. The reversal of 105444025542 is 245520444501.

105444025542 is a `hidden beast` number, since 1 + 0 + 54 + 4 + 40 + 25 + 542 = 666.

It is a super-2 number, since 2×105444025542² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105444025497 and 105444025506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105444025543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43715223 + ... + 43717634.

It is an arithmetic number, because the mean of its divisors is an integer number (9661330809).

Almost surely, 2^105444025542 is an apocalyptic number.

105444025542 is an abundant number, since it is smaller than the sum of its proper divisors (126427913874).

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

105444025542 is a wasteful number, since it uses less digits than its factorization.

105444025542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87432932 (or 87432929 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

The spelling of 105444025542 in words is "one hundred five billion, four hundred forty-four million, twenty-five thousand, five hundred forty-two".