2125123059864 has 64 divisors (see below), whose sum is σ = 6072281187840. Its totient is φ = 607127915520.

The previous prime is 2125123059803. The next prime is 2125123059907. The reversal of 2125123059864 is 4689503215212.

It is a super-2 number, since 2×2125123059864² (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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1544424 + ... + 2575944.

It is an arithmetic number, because the mean of its divisors is an integer number (94879393560).

Almost surely, 2^{2125123059864} is an apocalyptic number.

2125123059864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2125123059864 is an abundant number, since it is smaller than the sum of its proper divisors (3947158127976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2125123059864 is a wasteful number, since it uses less digits than its factorization.

2125123059864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043800 (or 1043796 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 2125123059864 in words is "two trillion, one hundred twenty-five billion, one hundred twenty-three million, fifty-nine thousand, eight hundred sixty-four".