107191955677 has 2 divisors, whose sum is σ = 107191955678. Its totient is φ = 107191955676.

The previous prime is 107191955609. The next prime is 107191955687. The reversal of 107191955677 is 776559191701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70980149241 + 36211806436 = 266421^2 + 190294^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-107191955677 is a prime.

It is a super-2 number, since 2×107191955677² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107191955687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53595977838 + 53595977839.

It is an arithmetic number, because the mean of its divisors is an integer number (53595977839).

Almost surely, 2^107191955677 is an apocalyptic number.

It is an amenable number.

107191955677 is a deficient number, since it is larger than the sum of its proper divisors (1).

107191955677 is an equidigital number, since it uses as much as digits as its factorization.

107191955677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4167450, while the sum is 58.

The spelling of 107191955677 in words is "one hundred seven billion, one hundred ninety-one million, nine hundred fifty-five thousand, six hundred seventy-seven".