78993086133 has 16 divisors (see below), whose sum is σ = 113514863616. Its totient is φ = 48573032640.

The previous prime is 78993086119. The next prime is 78993086149. The reversal of 78993086133 is 33168039987.

It is not a de Polignac number, because 78993086133 - 2¹⁸ = 78992823989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78993081133) 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 15 ways as a sum of consecutive naturals, for example, 743253 + ... + 842858.

It is an arithmetic number, because the mean of its divisors is an integer number (7094678976).

Almost surely, 2^78993086133 is an apocalyptic number.

It is an amenable number.

78993086133 is a deficient number, since it is larger than the sum of its proper divisors (34521777483).

78993086133 is a wasteful number, since it uses less digits than its factorization.

78993086133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587404.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 78993086133 in words is "seventy-eight billion, nine hundred ninety-three million, eighty-six thousand, one hundred thirty-three".