109453540820 has 48 divisors (see below), whose sum is σ = 248105318160. Its totient is φ = 40320239616.

The previous prime is 109453540813. The next prime is 109453540831. The reversal of 109453540820 is 28045354901.

It can be written as a sum of positive squares in 8 ways, for example, as 8128464964 + 101325075856 = 90158^2 + 318316^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373535 + ... + 598694.

It is an arithmetic number, because the mean of its divisors is an integer number (5168860795).

Almost surely, 2^109453540820 is an apocalyptic number.

109453540820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109453540820 is an abundant number, since it is smaller than the sum of its proper divisors (138651777340).

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

109453540820 is a wasteful number, since it uses less digits than its factorization.

109453540820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972684 (or 972682 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 109453540820 in words is "one hundred nine billion, four hundred fifty-three million, five hundred forty thousand, eight hundred twenty".