78079546229 has 4 divisors (see below), whose sum is σ = 78082142784. Its totient is φ = 78076949676.

The previous prime is 78079546213. The next prime is 78079546267. The reversal of 78079546229 is 92264597087.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 92264597087 = 13 ⋅7097276699.

It is a cyclic number.

It is not a de Polignac number, because 78079546229 - 2⁴ = 78079546213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78079546429) 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, 1252637 + ... + 1313490.

It is an arithmetic number, because the mean of its divisors is an integer number (19520535696).

Almost surely, 2^78079546229 is an apocalyptic number.

It is an amenable number.

78079546229 is a deficient number, since it is larger than the sum of its proper divisors (2596555).

78079546229 is a wasteful number, since it uses less digits than its factorization.

78079546229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596554.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 78079546229 in words is "seventy-eight billion, seventy-nine million, five hundred forty-six thousand, two hundred twenty-nine".