78242826302231 has 4 divisors (see below), whose sum is σ = 78242844165000. Its totient is φ = 78242808439464.

The previous prime is 78242826302117. The next prime is 78242826302287. The reversal of 78242826302231 is 13220362824287.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78242826302231 - 2²⁶ = 78242759193367 is a prime.

It is a super-2 number, since 2×78242826302231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78242826302231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78242826302731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2612240 + ... + 12779258.

It is an arithmetic number, because the mean of its divisors is an integer number (19560711041250).

Almost surely, 2^{78242826302231} is an apocalyptic number.

78242826302231 is a deficient number, since it is larger than the sum of its proper divisors (17862769).

78242826302231 is a wasteful number, since it uses less digits than its factorization.

78242826302231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17862768.

The product of its (nonzero) digits is 3096576, while the sum is 50.

The spelling of 78242826302231 in words is "seventy-eight trillion, two hundred forty-two billion, eight hundred twenty-six million, three hundred two thousand, two hundred thirty-one".