78448133483 has 4 divisors (see below), whose sum is σ = 78455427528. Its totient is φ = 78440839440.

The previous prime is 78448133473. The next prime is 78448133497. The reversal of 78448133483 is 38433184487.

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 78448133483 - 2¹² = 78448129387 is a prime.

It is a super-2 number, since 2×78448133483² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78448133473) 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, 3630866 + ... + 3652407.

It is an arithmetic number, because the mean of its divisors is an integer number (19613856882).

Almost surely, 2^78448133483 is an apocalyptic number.

78448133483 is a deficient number, since it is larger than the sum of its proper divisors (7294045).

78448133483 is a wasteful number, since it uses less digits than its factorization.

78448133483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7294044.

The product of its digits is 6193152, while the sum is 53.

The spelling of 78448133483 in words is "seventy-eight billion, four hundred forty-eight million, one hundred thirty-three thousand, four hundred eighty-three".