78217468298 has 8 divisors (see below), whose sum is σ = 117327618720. Its totient is φ = 39108262060.

The previous prime is 78217468271. The next prime is 78217468327. The reversal of 78217468298 is 89286471287.

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

It is a super-2 number, since 2×78217468298² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78217468298.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31883 + ... + 396801.

It is an arithmetic number, because the mean of its divisors is an integer number (14665952340).

Almost surely, 2^78217468298 is an apocalyptic number.

78217468298 is a deficient number, since it is larger than the sum of its proper divisors (39110150422).

78217468298 is a wasteful number, since it uses less digits than its factorization.

78217468298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472092.

The product of its digits is 21676032, while the sum is 62.

The spelling of 78217468298 in words is "seventy-eight billion, two hundred seventeen million, four hundred sixty-eight thousand, two hundred ninety-eight".