978617327375 has 72 divisors (see below), whose sum is σ = 1313738396880. Its totient is φ = 725794804800.

The previous prime is 978617327357. The next prime is 978617327377. The reversal of 978617327375 is 573723716879.

It is not a de Polignac number, because 978617327375 - 2⁸ = 978617327119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978617327377) 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 71 ways as a sum of consecutive naturals, for example, 2555136434 + ... + 2555136816.

Almost surely, 2^978617327375 is an apocalyptic number.

978617327375 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

978617327375 is a deficient number, since it is larger than the sum of its proper divisors (335121069505).

978617327375 is an frugal number, since it uses more digits than its factorization.

978617327375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 460 counting only the distinct ones).

The product of its digits is 93350880, while the sum is 65.

The spelling of 978617327375 in words is "nine hundred seventy-eight billion, six hundred seventeen million, three hundred twenty-seven thousand, three hundred seventy-five".