2105425881351 has 24 divisors (see below), whose sum is σ = 3275306858096. Its totient is φ = 1295567602560.

The previous prime is 2105425881343. The next prime is 2105425881359. The reversal of 2105425881351 is 1531885245012.

It is a happy number.

2105425881351 is a `hidden beast` number, since 2 + 1 + 0 + 5 + 4 + 2 + 588 + 13 + 51 = 666.

It is an interprime number because it is at equal distance from previous prime (2105425881343) and next prime (2105425881359).

It is not a de Polignac number, because 2105425881351 - 2³ = 2105425881343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2105425881297 and 2105425881306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105425881359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1405116 + ... + 2487006.

Almost surely, 2^{2105425881351} is an apocalyptic number.

2105425881351 is a deficient number, since it is larger than the sum of its proper divisors (1169880976745).

2105425881351 is a wasteful number, since it uses less digits than its factorization.

2105425881351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098543 (or 1098540 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The spelling of 2105425881351 in words is "two trillion, one hundred five billion, four hundred twenty-five million, eight hundred eighty-one thousand, three hundred fifty-one".