2125820468536 has 8 divisors (see below), whose sum is σ = 3985913378520. Its totient is φ = 1062910234264.

The previous prime is 2125820468521. The next prime is 2125820468549. The reversal of 2125820468536 is 6358640285212.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2125820468536² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132863779276 + ... + 132863779291.

It is an arithmetic number, because the mean of its divisors is an integer number (498239172315).

Almost surely, 2^{2125820468536} is an apocalyptic number.

It is an amenable number.

2125820468536 is a deficient number, since it is larger than the sum of its proper divisors (1860092909984).

2125820468536 is a wasteful number, since it uses less digits than its factorization.

2125820468536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265727558573 (or 265727558569 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 52.

The spelling of 2125820468536 in words is "two trillion, one hundred twenty-five billion, eight hundred twenty million, four hundred sixty-eight thousand, five hundred thirty-six".