78472998273 has 8 divisors (see below), whose sum is σ = 104632974688. Its totient is φ = 52314177024.

The previous prime is 78472998269. The next prime is 78472998281. The reversal of 78472998273 is 37289927487.

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

It is not a de Polignac number, because 78472998273 - 2² = 78472998269 is a prime.

It is a super-2 number, since 2×78472998273² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78472998673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115411 + ... + 412632.

It is an arithmetic number, because the mean of its divisors is an integer number (13079121836).

Almost surely, 2^78472998273 is an apocalyptic number.

It is an amenable number.

78472998273 is a deficient number, since it is larger than the sum of its proper divisors (26159976415).

78472998273 is a wasteful number, since it uses less digits than its factorization.

78472998273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577583.

The product of its digits is 85349376, while the sum is 66.

The spelling of 78472998273 in words is "seventy-eight billion, four hundred seventy-two million, nine hundred ninety-eight thousand, two hundred seventy-three".