108857540387 has 2 divisors, whose sum is σ = 108857540388. Its totient is φ = 108857540386.

The previous prime is 108857540357. The next prime is 108857540459. The reversal of 108857540387 is 783045758801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 108857540387 - 2⁸ = 108857540131 is a prime.

It is a super-2 number, since 2×108857540387² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108857540357) 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 as a sum of consecutive naturals, namely, 54428770193 + 54428770194.

It is an arithmetic number, because the mean of its divisors is an integer number (54428770194).

Almost surely, 2^108857540387 is an apocalyptic number.

108857540387 is a deficient number, since it is larger than the sum of its proper divisors (1).

108857540387 is an equidigital number, since it uses as much as digits as its factorization.

108857540387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7526400, while the sum is 56.

The spelling of 108857540387 in words is "one hundred eight billion, eight hundred fifty-seven million, five hundred forty thousand, three hundred eighty-seven".