998846000477 has 4 divisors (see below), whose sum is σ = 1075680308220. Its totient is φ = 922011692736.

The previous prime is 998846000473. The next prime is 998846000491. The reversal of 998846000477 is 774000648899.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 548686858756 + 450159141721 = 740734^2 + 670939^2 .

It is a cyclic number.

It is not a de Polignac number, because 998846000477 - 2² = 998846000473 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 (998846000473) 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, 38417153852 + ... + 38417153877.

It is an arithmetic number, because the mean of its divisors is an integer number (268920077055).

Almost surely, 2^998846000477 is an apocalyptic number.

It is an amenable number.

998846000477 is a deficient number, since it is larger than the sum of its proper divisors (76834307743).

998846000477 is a wasteful number, since it uses less digits than its factorization.

998846000477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76834307742.

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 998846000477 in words is "nine hundred ninety-eight billion, eight hundred forty-six million, four hundred seventy-seven", and thus it is an aban number.