2125421066918 has 8 divisors (see below), whose sum is σ = 3188394966312. Its totient is φ = 1062622744816.

The previous prime is 2125421066917. The next prime is 2125421066929. The reversal of 2125421066918 is 8196601245212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125421066917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43864055 + ... + 43912482.

It is an arithmetic number, because the mean of its divisors is an integer number (398549370789).

Almost surely, 2^{2125421066918} is an apocalyptic number.

2125421066918 is a deficient number, since it is larger than the sum of its proper divisors (1062973899394).

2125421066918 is a wasteful number, since it uses less digits than its factorization.

2125421066918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87788646.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 2125421066918 in words is "two trillion, one hundred twenty-five billion, four hundred twenty-one million, sixty-six thousand, nine hundred eighteen".