6612126887 has 4 divisors (see below), whose sum is σ = 6710815416. Its totient is φ = 6513438360.

The previous prime is 6612126869. The next prime is 6612126919. The reversal of 6612126887 is 7886212166.

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 6612126887 - 2¹⁴ = 6612110503 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 (6612126827) 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, 49344164 + ... + 49344297.

It is an arithmetic number, because the mean of its divisors is an integer number (1677703854).

Almost surely, 2^6612126887 is an apocalyptic number.

6612126887 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

6612126887 is a deficient number, since it is larger than the sum of its proper divisors (98688529).

6612126887 is an equidigital number, since it uses as much as digits as its factorization.

6612126887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98688528.

The product of its digits is 387072, while the sum is 47.

The square root of 6612126887 is about 81314.9856238074. The cubic root of 6612126887 is about 1876.9256080639.

The spelling of 6612126887 in words is "six billion, six hundred twelve million, one hundred twenty-six thousand, eight hundred eighty-seven".