105908208387 has 16 divisors (see below), whose sum is σ = 150069215232. Its totient is φ = 66206989440.

The previous prime is 105908208377. The next prime is 105908208409. The reversal of 105908208387 is 783802809501.

It is not a de Polignac number, because 105908208387 - 2²⁰ = 105907159811 is a prime.

It is a super-2 number, since 2×105908208387² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (105908208347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3817603 + ... + 3845244.

It is an arithmetic number, because the mean of its divisors is an integer number (9379325952).

Almost surely, 2^105908208387 is an apocalyptic number.

105908208387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

105908208387 is a deficient number, since it is larger than the sum of its proper divisors (44161006845).

105908208387 is a wasteful number, since it uses less digits than its factorization.

105908208387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7663138.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 105908208387 in words is "one hundred five billion, nine hundred eight million, two hundred eight thousand, three hundred eighty-seven".