105549480987 has 8 divisors (see below), whose sum is σ = 146851451904. Its totient is φ = 67306915368.

The previous prime is 105549480937. The next prime is 105549480989. The reversal of 105549480987 is 789084945501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105549480987 - 2⁸ = 105549480731 is a prime.

It is a super-2 number, since 2×105549480987² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105549480987.

It is not an unprimeable number, because it can be changed into a prime (105549480989) 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 7 ways as a sum of consecutive naturals, for example, 764851243 + ... + 764851380.

It is an arithmetic number, because the mean of its divisors is an integer number (18356431488).

Almost surely, 2^105549480987 is an apocalyptic number.

105549480987 is a deficient number, since it is larger than the sum of its proper divisors (41301970917).

105549480987 is a wasteful number, since it uses less digits than its factorization.

105549480987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529702649.

The product of its (nonzero) digits is 14515200, while the sum is 60.

The spelling of 105549480987 in words is "one hundred five billion, five hundred forty-nine million, four hundred eighty thousand, nine hundred eighty-seven".