125994989602 has 16 divisors (see below), whose sum is σ = 189202104000. Its totient is φ = 62927663760.

The previous prime is 125994989599. The next prime is 125994989629. The reversal of 125994989602 is 206989499521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7300099 + ... + 7317337.

It is an arithmetic number, because the mean of its divisors is an integer number (11825131500).

Almost surely, 2^125994989602 is an apocalyptic number.

125994989602 is a deficient number, since it is larger than the sum of its proper divisors (63207114398).

125994989602 is a wasteful number, since it uses less digits than its factorization.

125994989602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21081.

The product of its (nonzero) digits is 25194240, while the sum is 64.

The spelling of 125994989602 in words is "one hundred twenty-five billion, nine hundred ninety-four million, nine hundred eighty-nine thousand, six hundred two".