78533245427 has 8 divisors (see below), whose sum is σ = 96656302176. Its totient is φ = 62136194112.

The previous prime is 78533245333. The next prime is 78533245429. The reversal of 78533245427 is 72454233587.

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 78533245427 - 2¹⁴ = 78533229043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78533245429) 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 7 ways as a sum of consecutive naturals, for example, 431501258 + ... + 431501439.

It is an arithmetic number, because the mean of its divisors is an integer number (12082037772).

Almost surely, 2^78533245427 is an apocalyptic number.

78533245427 is a deficient number, since it is larger than the sum of its proper divisors (18123056749).

78533245427 is a wasteful number, since it uses less digits than its factorization.

78533245427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863002717.

The product of its digits is 5644800, while the sum is 50.

The spelling of 78533245427 in words is "seventy-eight billion, five hundred thirty-three million, two hundred forty-five thousand, four hundred twenty-seven".