98557661447 has 8 divisors (see below), whose sum is σ = 112685461152. Its totient is φ = 84441895200.

The previous prime is 98557661443. The next prime is 98557661453. The reversal of 98557661447 is 74416675589.

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 98557661447 - 2² = 98557661443 is a prime.

It is a super-2 number, since 2×98557661447² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98557661447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98557661443) 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, 2990804 + ... + 3023577.

It is an arithmetic number, because the mean of its divisors is an integer number (14085682644).

Almost surely, 2^98557661447 is an apocalyptic number.

98557661447 is a deficient number, since it is larger than the sum of its proper divisors (14127799705).

98557661447 is a wasteful number, since it uses less digits than its factorization.

98557661447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016729.

The product of its digits is 50803200, while the sum is 62.

The spelling of 98557661447 in words is "ninety-eight billion, five hundred fifty-seven million, six hundred sixty-one thousand, four hundred forty-seven".