108064781698 has 4 divisors (see below), whose sum is σ = 162097172550. Its totient is φ = 54032390848.

The previous prime is 108064781639. The next prime is 108064781719. The reversal of 108064781698 is 896187460801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 55327037089 + 52737744609 = 235217^2 + 229647^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27016195423 + ... + 27016195426.

Almost surely, 2^108064781698 is an apocalyptic number.

108064781698 is a deficient number, since it is larger than the sum of its proper divisors (54032390852).

108064781698 is an equidigital number, since it uses as much as digits as its factorization.

108064781698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54032390851.

The product of its (nonzero) digits is 4644864, while the sum is 58.

The spelling of 108064781698 in words is "one hundred eight billion, sixty-four million, seven hundred eighty-one thousand, six hundred ninety-eight".