79489040653 has 8 divisors (see below), whose sum is σ = 86720751936. Its totient is φ = 72258235200.

The previous prime is 79489040639. The next prime is 79489040707. The reversal of 79489040653 is 35604098497.

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 79489040653 - 2²⁹ = 78952169741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79489040594 and 79489040603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79489040633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36001 + ... + 400342.

It is an arithmetic number, because the mean of its divisors is an integer number (10840093992).

Almost surely, 2^79489040653 is an apocalyptic number.

It is an amenable number.

79489040653 is a deficient number, since it is larger than the sum of its proper divisors (7231711283).

79489040653 is a wasteful number, since it uses less digits than its factorization.

79489040653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452915.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 79489040653 in words is "seventy-nine billion, four hundred eighty-nine million, forty thousand, six hundred fifty-three".