2125407495990 has 32 divisors (see below), whose sum is σ = 5137675683840. Its totient is φ = 562697810784.

The previous prime is 2125407495977. The next prime is 2125407496013. The reversal of 2125407495990 is 995947045212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2125407495990.

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 in 15 ways as a sum of consecutive naturals, for example, 254840854 + ... + 254849193.

It is an arithmetic number, because the mean of its divisors is an integer number (160552365120).

Almost surely, 2^{2125407495990} is an apocalyptic number.

2125407495990 is an abundant number, since it is smaller than the sum of its proper divisors (3012268187850).

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

2125407495990 is a wasteful number, since it uses less digits than its factorization.

2125407495990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509690196.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 2125407495990 in words is "two trillion, one hundred twenty-five billion, four hundred seven million, four hundred ninety-five thousand, nine hundred ninety".