109997564773 has 2 divisors, whose sum is σ = 109997564774. Its totient is φ = 109997564772.

The previous prime is 109997564767. The next prime is 109997564921. The reversal of 109997564773 is 377465799901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109572916324 + 424648449 = 331018^2 + 20607^2 .

It is a cyclic number.

It is not a de Polignac number, because 109997564773 - 2⁵ = 109997564741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109997564699 and 109997564708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109997564713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54998782386 + 54998782387.

It is an arithmetic number, because the mean of its divisors is an integer number (54998782387).

Almost surely, 2^109997564773 is an apocalyptic number.

It is an amenable number.

109997564773 is a deficient number, since it is larger than the sum of its proper divisors (1).

109997564773 is an equidigital number, since it uses as much as digits as its factorization.

109997564773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90016920, while the sum is 67.

The spelling of 109997564773 in words is "one hundred nine billion, nine hundred ninety-seven million, five hundred sixty-four thousand, seven hundred seventy-three".