125626143949940 has 24 divisors (see below), whose sum is σ = 263815119106560. Its totient is φ = 50250416282528.

The previous prime is 125626143949909. The next prime is 125626143949949. The reversal of 125626143949940 is 49949341626521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125626143949949) 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 7 ways as a sum of consecutive naturals, for example, 37682201 + ... + 40880319.

It is an arithmetic number, because the mean of its divisors is an integer number (10992296629440).

Almost surely, 2^{125626143949940} is an apocalyptic number.

125626143949940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125626143949940 is an abundant number, since it is smaller than the sum of its proper divisors (138188975156620).

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

125626143949940 is a wasteful number, since it uses less digits than its factorization.

125626143949940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162191 (or 5162189 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 65.

The spelling of 125626143949940 in words is "one hundred twenty-five trillion, six hundred twenty-six billion, one hundred forty-three million, nine hundred forty-nine thousand, nine hundred forty".