107172044477 has 2 divisors, whose sum is σ = 107172044478. Its totient is φ = 107172044476.

The previous prime is 107172044471. The next prime is 107172044479. The reversal of 107172044477 is 774440271701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74495697721 + 32676346756 = 272939^2 + 180766^2 .

It is an emirp because it is prime and its reverse (774440271701) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-107172044477 is a prime.

It is a super-2 number, since 2×107172044477² (a number of 23 digits) contains 22 as substring.

Together with 107172044479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107172044471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53586022238 + 53586022239.

It is an arithmetic number, because the mean of its divisors is an integer number (53586022239).

Almost surely, 2^107172044477 is an apocalyptic number.

It is an amenable number.

107172044477 is a deficient number, since it is larger than the sum of its proper divisors (1).

107172044477 is an equidigital number, since it uses as much as digits as its factorization.

107172044477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 307328, while the sum is 44.

The spelling of 107172044477 in words is "one hundred seven billion, one hundred seventy-two million, forty-four thousand, four hundred seventy-seven".