125918685902 has 64 divisors (see below), whose sum is σ = 210031557120. Its totient is φ = 56349748224.

The previous prime is 125918685889. The next prime is 125918685911. The reversal of 125918685902 is 209586819521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30317858 + ... + 30322010.

It is an arithmetic number, because the mean of its divisors is an integer number (3281743080).

Almost surely, 2^125918685902 is an apocalyptic number.

125918685902 is a deficient number, since it is larger than the sum of its proper divisors (84112871218).

125918685902 is a wasteful number, since it uses less digits than its factorization.

125918685902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617.

The product of its (nonzero) digits is 3110400, while the sum is 56.

The spelling of 125918685902 in words is "one hundred twenty-five billion, nine hundred eighteen million, six hundred eighty-five thousand, nine hundred two".