108755728731 has 32 divisors (see below), whose sum is σ = 173578251840. Its totient is φ = 66901593600.

The previous prime is 108755728729. The next prime is 108755728759. The reversal of 108755728731 is 137827557801.

108755728731 is a `hidden beast` number, since 1 + 0 + 8 + 7 + 557 + 2 + 87 + 3 + 1 = 666.

It is not a de Polignac number, because 108755728731 - 2¹ = 108755728729 is a prime.

It is a super-2 number, since 2×108755728731² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (108755721731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 905571 + ... + 1018611.

It is an arithmetic number, because the mean of its divisors is an integer number (5424320370).

Almost surely, 2^108755728731 is an apocalyptic number.

108755728731 is a deficient number, since it is larger than the sum of its proper divisors (64822523109).

108755728731 is a wasteful number, since it uses less digits than its factorization.

108755728731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115804 (or 115798 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 54.

The spelling of 108755728731 in words is "one hundred eight billion, seven hundred fifty-five million, seven hundred twenty-eight thousand, seven hundred thirty-one".