125802801599 has 4 divisors (see below), whose sum is σ = 125803511136. Its totient is φ = 125802092064.

The previous prime is 125802801581. The next prime is 125802801611. The reversal of 125802801599 is 995108208521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125802801599 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 (125802806599) 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 in 3 ways as a sum of consecutive naturals, for example, 166007 + ... + 528359.

It is an arithmetic number, because the mean of its divisors is an integer number (31450877784).

Almost surely, 2^125802801599 is an apocalyptic number.

125802801599 is a deficient number, since it is larger than the sum of its proper divisors (709537).

125802801599 is an equidigital number, since it uses as much as digits as its factorization.

125802801599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709536.

The product of its (nonzero) digits is 518400, while the sum is 50.

The spelling of 125802801599 in words is "one hundred twenty-five billion, eight hundred two million, eight hundred one thousand, five hundred ninety-nine".