7876123173 has 12 divisors (see below), whose sum is σ = 11401965900. Its totient is φ = 5239051776.

The previous prime is 7876123139. The next prime is 7876123201. The reversal of 7876123173 is 3713216787.

It can be written as a sum of positive squares in 2 ways, for example, as 3992091489 + 3884031684 = 63183^2 + 62322^2 .

It is not a de Polignac number, because 7876123173 - 2¹⁸ = 7875861029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7876123133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 970486 + ... + 978567.

It is an arithmetic number, because the mean of its divisors is an integer number (950163825).

Almost surely, 2^7876123173 is an apocalyptic number.

It is an amenable number.

7876123173 is a deficient number, since it is larger than the sum of its proper divisors (3525842727).

7876123173 is a wasteful number, since it uses less digits than its factorization.

7876123173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949508 (or 1949505 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 7876123173 is about 88747.5248837961. The cubic root of 7876123173 is about 1989.6231850522.

The spelling of 7876123173 in words is "seven billion, eight hundred seventy-six million, one hundred twenty-three thousand, one hundred seventy-three".