99673420281 has 8 divisors (see below), whose sum is σ = 132900338304. Its totient is φ = 66447724560.

The previous prime is 99673420277. The next prime is 99673420283. The reversal of 99673420281 is 18202437699.

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

It is not a de Polignac number, because 99673420281 - 2² = 99673420277 is a prime.

It is a super-3 number, since 3×99673420281³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (99673420283) 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, 94465 + ... + 456366.

It is an arithmetic number, because the mean of its divisors is an integer number (16612542288).

Almost surely, 2^99673420281 is an apocalyptic number.

It is an amenable number.

99673420281 is a deficient number, since it is larger than the sum of its proper divisors (33226918023).

99673420281 is a wasteful number, since it uses less digits than its factorization.

99673420281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611151.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 99673420281 in words is "ninety-nine billion, six hundred seventy-three million, four hundred twenty thousand, two hundred eighty-one".