105813186492 has 24 divisors (see below), whose sum is σ = 265889545936. Its totient is φ = 32557903488.

The previous prime is 105813186469. The next prime is 105813186503. The reversal of 105813186492 is 294681318501.

It is a happy number.

It is a super-2 number, since 2×105813186492² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339144673 + ... + 339144984.

Almost surely, 2^105813186492 is an apocalyptic number.

105813186492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105813186492 is an abundant number, since it is smaller than the sum of its proper divisors (160076359444).

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

105813186492 is a wasteful number, since it uses less digits than its factorization.

105813186492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678289677 (or 678289675 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 105813186492 in words is "one hundred five billion, eight hundred thirteen million, one hundred eighty-six thousand, four hundred ninety-two".