78298306449 has 8 divisors (see below), whose sum is σ = 113888445792. Its totient is φ = 47453519040.

The previous prime is 78298306433. The next prime is 78298306511. The reversal of 78298306449 is 94460389287.

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

It is not a de Polignac number, because 78298306449 - 2⁴ = 78298306433 is a prime.

It is a super-2 number, since 2×78298306449² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78298306392 and 78298306401.

It is not an unprimeable number, because it can be changed into a prime (78298306049) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1186337944 + ... + 1186338009.

It is an arithmetic number, because the mean of its divisors is an integer number (14236055724).

Almost surely, 2^78298306449 is an apocalyptic number.

It is an amenable number.

78298306449 is a deficient number, since it is larger than the sum of its proper divisors (35590139343).

78298306449 is a wasteful number, since it uses less digits than its factorization.

78298306449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372675967.

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 78298306449 in words is "seventy-eight billion, two hundred ninety-eight million, three hundred six thousand, four hundred forty-nine".