105447731755149 has 24 divisors (see below), whose sum is σ = 180519573707200. Its totient is φ = 60255846716256.

The previous prime is 105447731755133. The next prime is 105447731755207. The reversal of 105447731755149 is 941557137744501.

105447731755149 is a `hidden beast` number, since 1 + 0 + 5 + 4 + 4 + 7 + 7 + 31 + 7 + 551 + 49 = 666.

It is not a de Polignac number, because 105447731755149 - 2⁴ = 105447731755133 is a prime.

It is a super-2 number, since 2×105447731755149² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105447731754149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30995804224 + ... + 30995807625.

Almost surely, 2^{105447731755149} is an apocalyptic number.

It is an amenable number.

105447731755149 is a deficient number, since it is larger than the sum of its proper divisors (75071841952051).

105447731755149 is an frugal number, since it uses more digits than its factorization.

105447731755149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61991611871 (or 61991611859 counting only the distinct ones).

The product of its (nonzero) digits is 74088000, while the sum is 63.

The spelling of 105447731755149 in words is "one hundred five trillion, four hundred forty-seven billion, seven hundred thirty-one million, seven hundred fifty-five thousand, one hundred forty-nine".