2129188690007 has 4 divisors (see below), whose sum is σ = 2129263095576. Its totient is φ = 2129114284440.

The previous prime is 2129188689997. The next prime is 2129188690019. The reversal of 2129188690007 is 7000968819212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2129188690007 - 2²⁰ = 2129187641431 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 (2129188690067) 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, 37159844 + ... + 37217097.

It is an arithmetic number, because the mean of its divisors is an integer number (532315773894).

Almost surely, 2^{2129188690007} is an apocalyptic number.

2129188690007 is a deficient number, since it is larger than the sum of its proper divisors (74405569).

2129188690007 is an equidigital number, since it uses as much as digits as its factorization.

2129188690007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74405568.

The product of its (nonzero) digits is 870912, while the sum is 53.

The spelling of 2129188690007 in words is "two trillion, one hundred twenty-nine billion, one hundred eighty-eight million, six hundred ninety thousand, seven".