978159348983 has 2 divisors, whose sum is σ = 978159348984. Its totient is φ = 978159348982.

The previous prime is 978159348931. The next prime is 978159349009. The reversal of 978159348983 is 389843951879.

It is a strong prime.

It is an emirp because it is prime and its reverse (389843951879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 978159348983 - 2¹⁴ = 978159332599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 978159348983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (978159348913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489079674491 + 489079674492.

It is an arithmetic number, because the mean of its divisors is an integer number (489079674492).

Almost surely, 2^978159348983 is an apocalyptic number.

978159348983 is a deficient number, since it is larger than the sum of its proper divisors (1).

978159348983 is an equidigital number, since it uses as much as digits as its factorization.

978159348983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470292480, while the sum is 74.

The spelling of 978159348983 in words is "nine hundred seventy-eight billion, one hundred fifty-nine million, three hundred forty-eight thousand, nine hundred eighty-three".