105927891820 has 48 divisors (see below), whose sum is σ = 235602053568. Its totient is φ = 39867176960.

The previous prime is 105927891809. The next prime is 105927891827. The reversal of 105927891820 is 28198729501.

It is a super-2 number, since 2×105927891820² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105927891827) 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, 1178265 + ... + 1264975.

It is an arithmetic number, because the mean of its divisors is an integer number (4908376116).

Almost surely, 2^105927891820 is an apocalyptic number.

105927891820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105927891820 is an abundant number, since it is smaller than the sum of its proper divisors (129674161748).

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

105927891820 is a wasteful number, since it uses less digits than its factorization.

105927891820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90330 (or 90328 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 52.

The spelling of 105927891820 in words is "one hundred five billion, nine hundred twenty-seven million, eight hundred ninety-one thousand, eight hundred twenty".