78298244289287 has 8 divisors (see below), whose sum is σ = 85416334699152. Its totient is φ = 71180165246400.

The previous prime is 78298244289259. The next prime is 78298244289289.

78298244289287 is nontrivially palindromic in base 10.

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 78298244289287 - 2¹⁴ = 78298244272903 is a prime.

It is a super-2 number, since 2×78298244289287² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78298244289289) 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, 18585533 + ... + 22405769.

It is an arithmetic number, because the mean of its divisors is an integer number (10677041837394).

Almost surely, 2^{78298244289287} is an apocalyptic number.

78298244289287 is a deficient number, since it is larger than the sum of its proper divisors (7118090409865).

78298244289287 is a wasteful number, since it uses less digits than its factorization.

78298244289287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683489.

The product of its digits is 4161798144, while the sum is 80.

The spelling of 78298244289287 in words is "seventy-eight trillion, two hundred ninety-eight billion, two hundred forty-four million, two hundred eighty-nine thousand, two hundred eighty-seven".