2126361028671 has 32 divisors (see below), whose sum is σ = 3436650201600. Its totient is φ = 1288663482240.

The previous prime is 2126361028609. The next prime is 2126361028681. The reversal of 2126361028671 is 1768201636212.

2126361028671 is a `hidden beast` number, since 2 + 1 + 2 + 6 + 3 + 610 + 28 + 6 + 7 + 1 = 666.

It is not a de Polignac number, because 2126361028671 - 2⁷ = 2126361028543 is a prime.

It is a super-2 number, since 2×2126361028671² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126361028601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11443015 + ... + 11627351.

It is an arithmetic number, because the mean of its divisors is an integer number (107395318800).

Almost surely, 2^{2126361028671} is an apocalyptic number.

2126361028671 is a deficient number, since it is larger than the sum of its proper divisors (1310289172929).

2126361028671 is a wasteful number, since it uses less digits than its factorization.

2126361028671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223196 (or 223190 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 2126361028671 in words is "two trillion, one hundred twenty-six billion, three hundred sixty-one million, twenty-eight thousand, six hundred seventy-one".