978525719425 has 6 divisors (see below), whose sum is σ = 1213371892118. Its totient is φ = 782820575520.

The previous prime is 978525719411. The next prime is 978525719471. The reversal of 978525719425 is 524917525879.

978525719425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 5351361409 + 973174358016 = 73153^2 + 986496^2 .

It is not a de Polignac number, because 978525719425 - 2⁵ = 978525719393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19570514364 + ... + 19570514413.

Almost surely, 2^978525719425 is an apocalyptic number.

It is an amenable number.

978525719425 is a deficient number, since it is larger than the sum of its proper divisors (234846172693).

978525719425 is a wasteful number, since it uses less digits than its factorization.

978525719425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39141028787 (or 39141028782 counting only the distinct ones).

The product of its digits is 63504000, while the sum is 64.

The spelling of 978525719425 in words is "nine hundred seventy-eight billion, five hundred twenty-five million, seven hundred nineteen thousand, four hundred twenty-five".