107821007540 has 24 divisors (see below), whose sum is σ = 229613190912. Its totient is φ = 42520960160.

The previous prime is 107821007531. The next prime is 107821007579. The reversal of 107821007540 is 45700128701.

It is a self number, because there is not a number n which added to its sum of digits gives 107821007540.

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, 37963724 + ... + 37966563.

It is an arithmetic number, because the mean of its divisors is an integer number (9567216288).

Almost surely, 2^107821007540 is an apocalyptic number.

107821007540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

107821007540 is an abundant number, since it is smaller than the sum of its proper divisors (121792183372).

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

107821007540 is a wasteful number, since it uses less digits than its factorization.

107821007540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75930367 (or 75930365 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 35.

The spelling of 107821007540 in words is "one hundred seven billion, eight hundred twenty-one million, seven thousand, five hundred forty".