105029867819 has 4 divisors (see below), whose sum is σ = 105488513760. Its totient is φ = 104571221880.

The previous prime is 105029867777. The next prime is 105029867837. The reversal of 105029867819 is 918768920501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105029867819 - 2¹² = 105029863723 is a prime.

It is a super-2 number, since 2×105029867819² (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 (105029867869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229322627 + ... + 229323084.

It is an arithmetic number, because the mean of its divisors is an integer number (26372128440).

Almost surely, 2^105029867819 is an apocalyptic number.

105029867819 is a deficient number, since it is larger than the sum of its proper divisors (458645941).

105029867819 is an equidigital number, since it uses as much as digits as its factorization.

105029867819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458645940.

The product of its (nonzero) digits is 2177280, while the sum is 56.

The spelling of 105029867819 in words is "one hundred five billion, twenty-nine million, eight hundred sixty-seven thousand, eight hundred nineteen".