2123675500787 has 2 divisors, whose sum is σ = 2123675500788. Its totient is φ = 2123675500786.

The previous prime is 2123675500769. The next prime is 2123675500789. The reversal of 2123675500787 is 7870055763212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123675500787 - 2²² = 2123671306483 is a prime.

It is a super-5 number, since 5×2123675500787⁵ (a number of 63 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.

Together with 2123675500789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2123675500789) 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 as a sum of consecutive naturals, namely, 1061837750393 + 1061837750394.

It is an arithmetic number, because the mean of its divisors is an integer number (1061837750394).

Almost surely, 2^{2123675500787} is an apocalyptic number.

2123675500787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123675500787 is an equidigital number, since it uses as much as digits as its factorization.

2123675500787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4939200, while the sum is 53.

The spelling of 2123675500787 in words is "two trillion, one hundred twenty-three billion, six hundred seventy-five million, five hundred thousand, seven hundred eighty-seven".