898961559791 has 8 divisors (see below), whose sum is σ = 905021132400. Its totient is φ = 892902337792.

The previous prime is 898961559709. The next prime is 898961559809. The reversal of 898961559791 is 197955169898.

898961559791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 898961559791 - 2¹⁰ = 898961558767 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 (898961559701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6957311 + ... + 7085343.

It is an arithmetic number, because the mean of its divisors is an integer number (113127641550).

Almost surely, 2^898961559791 is an apocalyptic number.

898961559791 is a deficient number, since it is larger than the sum of its proper divisors (6059572609).

898961559791 is a wasteful number, since it uses less digits than its factorization.

898961559791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175305.

The product of its digits is 440899200, while the sum is 77.

The spelling of 898961559791 in words is "eight hundred ninety-eight billion, nine hundred sixty-one million, five hundred fifty-nine thousand, seven hundred ninety-one".