898133972647 has 4 divisors (see below), whose sum is σ = 899584916680. Its totient is φ = 896683028616.

The previous prime is 898133972641. The next prime is 898133972699. The reversal of 898133972647 is 746279331898.

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 898133972647 - 2²⁷ = 897999754919 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 (898133972641) 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, 725471088 + ... + 725472325.

It is an arithmetic number, because the mean of its divisors is an integer number (224896229170).

Almost surely, 2^898133972647 is an apocalyptic number.

898133972647 is a deficient number, since it is larger than the sum of its proper divisors (1450944033).

898133972647 is a wasteful number, since it uses less digits than its factorization.

898133972647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450944032.

The product of its digits is 109734912, while the sum is 67.

The spelling of 898133972647 in words is "eight hundred ninety-eight billion, one hundred thirty-three million, nine hundred seventy-two thousand, six hundred forty-seven".