654171998482 has 4 divisors (see below), whose sum is σ = 981257997726. Its totient is φ = 327085999240.

The previous prime is 654171998479. The next prime is 654171998489. The reversal of 654171998482 is 284899171456.

It is a Cunningham number, because it is equal to 808809²+1.

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

It can be written as a sum of positive squares in only one way, i.e., 654171998481 + 1 = 808809^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (654171998489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163542999619 + ... + 163542999622.

Almost surely, 2^654171998482 is an apocalyptic number.

654171998482 is a deficient number, since it is larger than the sum of its proper divisors (327085999244).

654171998482 is a wasteful number, since it uses less digits than its factorization.

654171998482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327085999243.

The product of its digits is 34836480, while the sum is 64.

The spelling of 654171998482 in words is "six hundred fifty-four billion, one hundred seventy-one million, nine hundred ninety-eight thousand, four hundred eighty-two".