77894029293 has 16 divisors (see below), whose sum is σ = 106979675712. Its totient is φ = 50382864000.

The previous prime is 77894029277. The next prime is 77894029333. The reversal of 77894029293 is 39292049877.

It is not a de Polignac number, because 77894029293 - 2⁴ = 77894029277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77894022293) 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, 1727143 + ... + 1771668.

It is an arithmetic number, because the mean of its divisors is an integer number (6686229732).

Almost surely, 2^77894029293 is an apocalyptic number.

It is an amenable number.

77894029293 is a deficient number, since it is larger than the sum of its proper divisors (29085646419).

77894029293 is a wasteful number, since it uses less digits than its factorization.

77894029293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499036.

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 77894029293 in words is "seventy-seven billion, eight hundred ninety-four million, twenty-nine thousand, two hundred ninety-three".