125001387608 has 8 divisors (see below), whose sum is σ = 234377601780. Its totient is φ = 62500693800.

The previous prime is 125001387607. The next prime is 125001387631. The reversal of 125001387608 is 806783100521.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125001387607) by changing a digit.

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 as a sum of consecutive naturals, namely, 7812586718 + ... + 7812586733.

Almost surely, 2^125001387608 is an apocalyptic number.

It is an amenable number.

125001387608 is a deficient number, since it is larger than the sum of its proper divisors (109376214172).

125001387608 is a wasteful number, since it uses less digits than its factorization.

125001387608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15625173457 (or 15625173453 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 125001387608 in words is "one hundred twenty-five billion, one million, three hundred eighty-seven thousand, six hundred eight".