2129691356611 has 32 divisors (see below), whose sum is σ = 2848118067200. Its totient is φ = 1544849677440.

The previous prime is 2129691356603. The next prime is 2129691356621. The reversal of 2129691356611 is 1166531969212.

It is not a de Polignac number, because 2129691356611 - 2³ = 2129691356603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2129691356621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19813296 + ... + 19920493.

It is an arithmetic number, because the mean of its divisors is an integer number (89003689600).

Almost surely, 2^{2129691356611} is an apocalyptic number.

2129691356611 is a deficient number, since it is larger than the sum of its proper divisors (718426710589).

2129691356611 is a wasteful number, since it uses less digits than its factorization.

2129691356611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39733859.

The product of its digits is 1049760, while the sum is 52.

The spelling of 2129691356611 in words is "two trillion, one hundred twenty-nine billion, six hundred ninety-one million, three hundred fifty-six thousand, six hundred eleven".