107747779081 has 4 divisors (see below), whose sum is σ = 112432465152. Its totient is φ = 103063093012.

The previous prime is 107747779049. The next prime is 107747779091. The reversal of 107747779081 is 180977747701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 107747779081 - 2⁵ = 107747779049 is a prime.

It is a super-2 number, since 2×107747779081² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107747779001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342343001 + ... + 2342343046.

It is an arithmetic number, because the mean of its divisors is an integer number (28108116288).

Almost surely, 2^107747779081 is an apocalyptic number.

It is an amenable number.

107747779081 is a deficient number, since it is larger than the sum of its proper divisors (4684686071).

107747779081 is an equidigital number, since it uses as much as digits as its factorization.

107747779081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4684686070.

The product of its (nonzero) digits is 4840416, while the sum is 58.

The spelling of 107747779081 in words is "one hundred seven billion, seven hundred forty-seven million, seven hundred seventy-nine thousand, eighty-one".