109171072377 has 10 divisors (see below), whose sum is σ = 163082713178. Its totient is φ = 72780714864.

The previous prime is 109171072363. The next prime is 109171072391. The reversal of 109171072377 is 773270171901.

It is a happy number.

109171072377 is a `hidden beast` number, since 109 + 171 + 0 + 7 + 2 + 377 = 666.

It is an interprime number because it is at equal distance from previous prime (109171072363) and next prime (109171072391).

It can be written as a sum of positive squares in only one way, i.e., 63485857296 + 45685215081 = 251964^2 + 213741^2 .

It is not a de Polignac number, because 109171072377 - 2⁶ = 109171072313 is a prime.

It is a super-3 number, since 3×109171072377³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109171072337) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 673895428 + ... + 673895589.

Almost surely, 2^109171072377 is an apocalyptic number.

It is an amenable number.

109171072377 is a deficient number, since it is larger than the sum of its proper divisors (53911640801).

109171072377 is an equidigital number, since it uses as much as digits as its factorization.

109171072377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347791029 (or 1347791020 counting only the distinct ones).

The product of its (nonzero) digits is 129654, while the sum is 45.

The spelling of 109171072377 in words is "one hundred nine billion, one hundred seventy-one million, seventy-two thousand, three hundred seventy-seven".