79821235048 has 32 divisors (see below), whose sum is σ = 151743477960. Its totient is φ = 39356513280.

The previous prime is 79821234979. The next prime is 79821235093. The reversal of 79821235048 is 84053212897.

It can be written as a sum of positive squares in 4 ways, for example, as 77096186244 + 2725048804 = 277662^2 + 52202^2 .

It is a junction number, because it is equal to n+sod(n) for n = 79821234992 and 79821235010.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4406586 + ... + 4424662.

Almost surely, 2^79821235048 is an apocalyptic number.

It is an amenable number.

79821235048 is a deficient number, since it is larger than the sum of its proper divisors (71922242912).

79821235048 is a wasteful number, since it uses less digits than its factorization.

79821235048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25717 (or 25713 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 79821235048 in words is "seventy-nine billion, eight hundred twenty-one million, two hundred thirty-five thousand, forty-eight".