78243233301 has 12 divisors (see below), whose sum is σ = 113831084640. Its totient is φ = 51786887400.

The previous prime is 78243233273. The next prime is 78243233303. The reversal of 78243233301 is 10333234287.

78243233301 is a `hidden beast` number, since 7 + 8 + 24 + 323 + 3 + 301 = 666.

It is not a de Polignac number, because 78243233301 - 2³³ = 69653298709 is a prime.

It is a super-2 number, since 2×78243233301² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78243233303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31271025 + ... + 31273526.

It is an arithmetic number, because the mean of its divisors is an integer number (9485923720).

Almost surely, 2^78243233301 is an apocalyptic number.

It is an amenable number.

78243233301 is a deficient number, since it is larger than the sum of its proper divisors (35587851339).

78243233301 is a wasteful number, since it uses less digits than its factorization.

78243233301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62544696 (or 62544693 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

Adding to 78243233301 its reverse (10333234287), we get a palindrome (88576467588).

The spelling of 78243233301 in words is "seventy-eight billion, two hundred forty-three million, two hundred thirty-three thousand, three hundred one".