79855233497 has 8 divisors (see below), whose sum is σ = 86011222920. Its totient is φ = 73701141120.

The previous prime is 79855233457. The next prime is 79855233541. The reversal of 79855233497 is 79433255897.

It can be written as a sum of positive squares in 4 ways, for example, as 42062318281 + 37792915216 = 205091^2 + 194404^2 .

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 79855233497 - 2¹⁶ = 79855167961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79855233457) 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, 386222 + ... + 555767.

It is an arithmetic number, because the mean of its divisors is an integer number (10751402865).

Almost surely, 2^79855233497 is an apocalyptic number.

It is an amenable number.

79855233497 is a deficient number, since it is larger than the sum of its proper divisors (6155989423).

79855233497 is a wasteful number, since it uses less digits than its factorization.

79855233497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948523.

The product of its digits is 57153600, while the sum is 62.

The spelling of 79855233497 in words is "seventy-nine billion, eight hundred fifty-five million, two hundred thirty-three thousand, four hundred ninety-seven".