4172772877165 has 4 divisors (see below), whose sum is σ = 5007327452604. Its totient is φ = 3338218301728.

The previous prime is 4172772877153. The next prime is 4172772877177. The reversal of 4172772877165 is 5617782772714.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4172772877153) and next prime (4172772877177).

It can be written as a sum of positive squares in 2 ways, for example, as 512124865641 + 3660648011524 = 715629^2 + 1913282^2 .

It is a cyclic number.

It is not a de Polignac number, because 4172772877165 - 2¹⁹ = 4172772352877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4172772877097 and 4172772877106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417277287712 + ... + 417277287721.

It is an arithmetic number, because the mean of its divisors is an integer number (1251831863151).

Almost surely, 2^{4172772877165} is an apocalyptic number.

It is an amenable number.

4172772877165 is a deficient number, since it is larger than the sum of its proper divisors (834554575439).

4172772877165 is an equidigital number, since it uses as much as digits as its factorization.

4172772877165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834554575438.

The product of its digits is 64538880, while the sum is 64.

The spelling of 4172772877165 in words is "four trillion, one hundred seventy-two billion, seven hundred seventy-two million, eight hundred seventy-seven thousand, one hundred sixty-five".