109451858520 has 32 divisors (see below), whose sum is σ = 328355575920. Its totient is φ = 29187162240.

The previous prime is 109451858501. The next prime is 109451858533. The reversal of 109451858520 is 25858154901.

It is a self number, because there is not a number n which added to its sum of digits gives 109451858520.

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, 456049291 + ... + 456049530.

Almost surely, 2^109451858520 is an apocalyptic number.

109451858520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109451858520 is an abundant number, since it is smaller than the sum of its proper divisors (218903717400).

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

109451858520 is a wasteful number, since it uses less digits than its factorization.

109451858520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912098835 (or 912098831 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 48.

The spelling of 109451858520 in words is "one hundred nine billion, four hundred fifty-one million, eight hundred fifty-eight thousand, five hundred twenty".