2129789574658 has 8 divisors (see below), whose sum is σ = 3225700715328. Its totient is φ = 1054556002884.

The previous prime is 2129789574623. The next prime is 2129789574659. The reversal of 2129789574658 is 8564759879212.

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

It is not an unprimeable number, because it can be changed into a prime (2129789574659) 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 3 ways as a sum of consecutive naturals, for example, 5169391966 + ... + 5169392377.

It is an arithmetic number, because the mean of its divisors is an integer number (403212589416).

Almost surely, 2^{2129789574658} is an apocalyptic number.

2129789574658 is a deficient number, since it is larger than the sum of its proper divisors (1095911140670).

2129789574658 is a wasteful number, since it uses less digits than its factorization.

2129789574658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10338784448.

The product of its digits is 609638400, while the sum is 73.

The spelling of 2129789574658 in words is "two trillion, one hundred twenty-nine billion, seven hundred eighty-nine million, five hundred seventy-four thousand, six hundred fifty-eight".