6487192123 has 2 divisors, whose sum is σ = 6487192124. Its totient is φ = 6487192122.

The previous prime is 6487192109. The next prime is 6487192157. The reversal of 6487192123 is 3212917846.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6487192123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6487192123.

It is not a weakly prime, because it can be changed into another prime (6487192183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3243596061 + 3243596062.

It is an arithmetic number, because the mean of its divisors is an integer number (3243596062).

Almost surely, 2^6487192123 is an apocalyptic number.

6487192123 is a deficient number, since it is larger than the sum of its proper divisors (1).

6487192123 is an equidigital number, since it uses as much as digits as its factorization.

6487192123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 6487192123 is about 80543.1072345735. The cubic root of 6487192123 is about 1865.0289892400.

The spelling of 6487192123 in words is "six billion, four hundred eighty-seven million, one hundred ninety-two thousand, one hundred twenty-three".