125478359999 has 8 divisors (see below), whose sum is σ = 129537392880. Its totient is φ = 121454470656.

The previous prime is 125478359989. The next prime is 125478360001. The reversal of 125478359999 is 999953874521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125478359999 - 2¹⁶ = 125478294463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125478359959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8778629 + ... + 8792910.

It is an arithmetic number, because the mean of its divisors is an integer number (16192174110).

Almost surely, 2^125478359999 is an apocalyptic number.

125478359999 is a deficient number, since it is larger than the sum of its proper divisors (4059032881).

125478359999 is a wasteful number, since it uses less digits than its factorization.

125478359999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17571769.

The product of its digits is 220449600, while the sum is 71.

The spelling of 125478359999 in words is "one hundred twenty-five billion, four hundred seventy-eight million, three hundred fifty-nine thousand, nine hundred ninety-nine".