4168355139025 has 81 divisors (see below), whose sum is σ = 6610180953243. Its totient is φ = 2597965154400.

The previous prime is 4168355139019. The next prime is 4168355139041. The reversal of 4168355139025 is 5209315538614.

The square root of 4168355139025 is 2041655.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1500607850049 + 2667747288976 = 1224993^2 + 1633324^2 .

It is not a de Polignac number, because 4168355139025 - 2⁵ = 4168355138993 is a prime.

It is a super-3 number, since 3×4168355139025³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 786034524 + ... + 786039826.

Almost surely, 2^{4168355139025} is an apocalyptic number.

4168355139025 is the 2041655-th square number.

4168355139025 is the 1020828-th centered octagonal number.

It is an amenable number.

4168355139025 is a deficient number, since it is larger than the sum of its proper divisors (2441825814218).

4168355139025 is an frugal number, since it uses more digits than its factorization.

4168355139025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10652 (or 5326 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 4168355139025 in words is "four trillion, one hundred sixty-eight billion, three hundred fifty-five million, one hundred thirty-nine thousand, twenty-five".