2125407495989 has 8 divisors (see below), whose sum is σ = 2158674039000. Its totient is φ = 2092349521152.

The previous prime is 2125407495977. The next prime is 2125407496013. The reversal of 2125407495989 is 9895947045212.

It can be written as a sum of positive squares in 4 ways, for example, as 1140500115364 + 984907380625 = 1067942^2 + 992425^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2125407495989 - 2³² = 2121112528693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125407495919) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 52121504 + ... + 52162265.

It is an arithmetic number, because the mean of its divisors is an integer number (269834254875).

Almost surely, 2^{2125407495989} is an apocalyptic number.

It is an amenable number.

2125407495989 is a deficient number, since it is larger than the sum of its proper divisors (33266543011).

2125407495989 is a wasteful number, since it uses less digits than its factorization.

2125407495989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104284087.

The product of its (nonzero) digits is 65318400, while the sum is 65.

The spelling of 2125407495989 in words is "two trillion, one hundred twenty-five billion, four hundred seven million, four hundred ninety-five thousand, nine hundred eighty-nine".