78020241353 has 4 divisors (see below), whose sum is σ = 78020909328. Its totient is φ = 78019573380.

The previous prime is 78020241323. The next prime is 78020241389. The reversal of 78020241353 is 35314202087.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78020241353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78020241323) 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 3 ways as a sum of consecutive naturals, for example, 107663 + ... + 409428.

It is an arithmetic number, because the mean of its divisors is an integer number (19505227332).

Almost surely, 2^78020241353 is an apocalyptic number.

It is an amenable number.

78020241353 is a deficient number, since it is larger than the sum of its proper divisors (667975).

78020241353 is a wasteful number, since it uses less digits than its factorization.

78020241353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667974.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 78020241353 in words is "seventy-eight billion, twenty million, two hundred forty-one thousand, three hundred fifty-three".