980279916391 has 4 divisors (see below), whose sum is σ = 984925792984. Its totient is φ = 975634039800.

The previous prime is 980279916389. The next prime is 980279916419. The reversal of 980279916391 is 193619972089.

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 980279916391 - 2¹ = 980279916389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980279916491) 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, 2322937980 + ... + 2322938401.

It is an arithmetic number, because the mean of its divisors is an integer number (246231448246).

Almost surely, 2^980279916391 is an apocalyptic number.

980279916391 is a deficient number, since it is larger than the sum of its proper divisors (4645876593).

980279916391 is a wasteful number, since it uses less digits than its factorization.

980279916391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4645876592.

The product of its (nonzero) digits is 13226976, while the sum is 64.

The spelling of 980279916391 in words is "nine hundred eighty billion, two hundred seventy-nine million, nine hundred sixteen thousand, three hundred ninety-one".