125994853803 has 96 divisors (see below), whose sum is σ = 216634656000. Its totient is φ = 64514983680.

The previous prime is 125994853759. The next prime is 125994853841. The reversal of 125994853803 is 308358499521.

It is a happy number.

It is not a de Polignac number, because 125994853803 - 2¹³ = 125994845611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125994853603) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35281008 + ... + 35284578.

It is an arithmetic number, because the mean of its divisors is an integer number (2256611000).

Almost surely, 2^125994853803 is an apocalyptic number.

125994853803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125994853803 is a deficient number, since it is larger than the sum of its proper divisors (90639802197).

125994853803 is a wasteful number, since it uses less digits than its factorization.

125994853803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137 (or 4130 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 125994853803 in words is "one hundred twenty-five billion, nine hundred ninety-four million, eight hundred fifty-three thousand, eight hundred three".