8720545535 has 64 divisors (see below), whose sum is σ = 11792583936. Its totient is φ = 6150144000.

The previous prime is 8720545523. The next prime is 8720545541. The reversal of 8720545535 is 5355450278.

It is not a de Polignac number, because 8720545535 - 2⁸ = 8720545279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24703919 + ... + 24704271.

It is an arithmetic number, because the mean of its divisors is an integer number (184259124).

Almost surely, 2^8720545535 is an apocalyptic number.

8720545535 is a deficient number, since it is larger than the sum of its proper divisors (3072038401).

8720545535 is a wasteful number, since it uses less digits than its factorization.

8720545535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its (nonzero) digits is 840000, while the sum is 44.

The square root of 8720545535 is about 93383.8612127385. The cubic root of 8720545535 is about 2058.3278552782.

The spelling of 8720545535 in words is "eight billion, seven hundred twenty million, five hundred forty-five thousand, five hundred thirty-five".