8125623799 has 2 divisors, whose sum is σ = 8125623800. Its totient is φ = 8125623798.

The previous prime is 8125623757. The next prime is 8125623823. The reversal of 8125623799 is 9973265218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8125623799 - 2¹³ = 8125615607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8125623899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4062811899 + 4062811900.

It is an arithmetic number, because the mean of its divisors is an integer number (4062811900).

Almost surely, 2^8125623799 is an apocalyptic number.

8125623799 is a deficient number, since it is larger than the sum of its proper divisors (1).

8125623799 is an equidigital number, since it uses as much as digits as its factorization.

8125623799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 52.

The square root of 8125623799 is about 90142.2420344646. The cubic root of 8125623799 is about 2010.4143266899.

The spelling of 8125623799 in words is "eight billion, one hundred twenty-five million, six hundred twenty-three thousand, seven hundred ninety-nine".