2129789574682 has 32 divisors (see below), whose sum is σ = 3988286889984. Its totient is φ = 828683190000.

The previous prime is 2129789574659. The next prime is 2129789574683. The reversal of 2129789574682 is 2864759879212.

It is a happy number.

It is a super-2 number, since 2×2129789574682² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2129789574683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9091938 + ... + 9323245.

It is an arithmetic number, because the mean of its divisors is an integer number (124633965312).

Almost surely, 2^{2129789574682} is an apocalyptic number.

2129789574682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2129789574682 is a deficient number, since it is larger than the sum of its proper divisors (1858497315302).

2129789574682 is a wasteful number, since it uses less digits than its factorization.

2129789574682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18415954.

The product of its digits is 243855360, while the sum is 70.

The spelling of 2129789574682 in words is "two trillion, one hundred twenty-nine billion, seven hundred eighty-nine million, five hundred seventy-four thousand, six hundred eighty-two".