978258675007 has 4 divisors (see below), whose sum is σ = 979467895440. Its totient is φ = 977049454576.

The previous prime is 978258674989. The next prime is 978258675019. The reversal of 978258675007 is 700576852879.

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 978258675007 - 2¹¹ = 978258672959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 978258675007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978258675067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604609003 + ... + 604610620.

It is an arithmetic number, because the mean of its divisors is an integer number (244866973860).

Almost surely, 2^978258675007 is an apocalyptic number.

978258675007 is a deficient number, since it is larger than the sum of its proper divisors (1209220433).

978258675007 is a wasteful number, since it uses less digits than its factorization.

978258675007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209220432.

The product of its (nonzero) digits is 59270400, while the sum is 64.

The spelling of 978258675007 in words is "nine hundred seventy-eight billion, two hundred fifty-eight million, six hundred seventy-five thousand, seven".