107327721730778 has 4 divisors (see below), whose sum is σ = 160991582596170. Its totient is φ = 53663860865388.

The previous prime is 107327721730771. The next prime is 107327721730807. The reversal of 107327721730778 is 877037127723701.

It is a happy number.

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., 105321512941129 + 2006208789649 = 10262627^2 + 1416407^2 .

It is a super-2 number, since 2×107327721730778² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 107327721730778.

It is not an unprimeable number, because it can be changed into a prime (107327721730771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26831930432693 + ... + 26831930432696.

Almost surely, 2^{107327721730778} is an apocalyptic number.

107327721730778 is a deficient number, since it is larger than the sum of its proper divisors (53663860865392).

107327721730778 is an equidigital number, since it uses as much as digits as its factorization.

107327721730778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53663860865391.

The product of its (nonzero) digits is 33882912, while the sum is 62.

The spelling of 107327721730778 in words is "one hundred seven trillion, three hundred twenty-seven billion, seven hundred twenty-one million, seven hundred thirty thousand, seven hundred seventy-eight".