125918681982 has 32 divisors (see below), whose sum is σ = 255011404032. Its totient is φ = 41444442624.

The previous prime is 125918681957. The next prime is 125918681983. The reversal of 125918681982 is 289186819521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125918681983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 851358 + ... + 988254.

It is an arithmetic number, because the mean of its divisors is an integer number (7969106376).

Almost surely, 2^125918681982 is an apocalyptic number.

125918681982 is an abundant number, since it is smaller than the sum of its proper divisors (129092722050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125918681982 is a wasteful number, since it uses less digits than its factorization.

125918681982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138832.

The product of its digits is 4976640, while the sum is 60.

The spelling of 125918681982 in words is "one hundred twenty-five billion, nine hundred eighteen million, six hundred eighty-one thousand, nine hundred eighty-two".