980554874879 has 4 divisors (see below), whose sum is σ = 980558210520. Its totient is φ = 980551539240.

The previous prime is 980554874867. The next prime is 980554874903. The reversal of 980554874879 is 978478455089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978478455089 = 12781 ⋅76557269.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-980554874879 is a prime.

It is a super-2 number, since 2×980554874879² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980554874839) 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, 1179149 + ... + 1830710.

It is an arithmetic number, because the mean of its divisors is an integer number (245139552630).

Almost surely, 2^980554874879 is an apocalyptic number.

980554874879 is a deficient number, since it is larger than the sum of its proper divisors (3335641).

980554874879 is a wasteful number, since it uses less digits than its factorization.

980554874879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335640.

The product of its (nonzero) digits is 812851200, while the sum is 74.

The spelling of 980554874879 in words is "nine hundred eighty billion, five hundred fifty-four million, eight hundred seventy-four thousand, eight hundred seventy-nine".