78218582322433 has 48 divisors (see below), whose sum is σ = 95111965540800. Its totient is φ = 64055627260800.

The previous prime is 78218582322431. The next prime is 78218582322443. The reversal of 78218582322433 is 33422328581287.

It is a happy number.

It is not a de Polignac number, because 78218582322433 - 2¹ = 78218582322431 is a prime.

It is a super-2 number, since 2×78218582322433² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78218582322431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 256319538 + ... + 256624516.

It is an arithmetic number, because the mean of its divisors is an integer number (1981499282100).

Almost surely, 2^{78218582322433} is an apocalyptic number.

It is an amenable number.

78218582322433 is a deficient number, since it is larger than the sum of its proper divisors (16893383218367).

78218582322433 is a wasteful number, since it uses less digits than its factorization.

78218582322433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306910 (or 306903 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 58.

The spelling of 78218582322433 in words is "seventy-eight trillion, two hundred eighteen billion, five hundred eighty-two million, three hundred twenty-two thousand, four hundred thirty-three".