107781505306 has 4 divisors (see below), whose sum is σ = 161672257962. Its totient is φ = 53890752652.

The previous prime is 107781505289. The next prime is 107781505339. The reversal of 107781505306 is 603505187701.

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., 90926974681 + 16854530625 = 301541^2 + 129825^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26945376325 + ... + 26945376328.

Almost surely, 2^107781505306 is an apocalyptic number.

107781505306 is a deficient number, since it is larger than the sum of its proper divisors (53890752656).

107781505306 is an equidigital number, since it uses as much as digits as its factorization.

107781505306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53890752655.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 107781505306 in words is "one hundred seven billion, seven hundred eighty-one million, five hundred five thousand, three hundred six".