125327788387 has 4 divisors (see below), whose sum is σ = 127044607480. Its totient is φ = 123610969296.

The previous prime is 125327788381. The next prime is 125327788423. The reversal of 125327788387 is 783887723521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125327788387 - 2³¹ = 123180304739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125327788381) 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 in 3 ways as a sum of consecutive naturals, for example, 858409437 + ... + 858409582.

It is an arithmetic number, because the mean of its divisors is an integer number (31761151870).

Almost surely, 2^125327788387 is an apocalyptic number.

125327788387 is a deficient number, since it is larger than the sum of its proper divisors (1716819093).

125327788387 is an equidigital number, since it uses as much as digits as its factorization.

125327788387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716819092.

The product of its digits is 31610880, while the sum is 61.

The spelling of 125327788387 in words is "one hundred twenty-five billion, three hundred twenty-seven million, seven hundred eighty-eight thousand, three hundred eighty-seven".