28679917070 has 48 divisors (see below), whose sum is σ = 60209422848. Its totient is φ = 9807376320.

The previous prime is 28679917043. The next prime is 28679917073. The reversal of 28679917070 is 7071997682.

It is a junction number, because it is equal to n+sod(n) for n = 28679916997 and 28679917015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28679917073) 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 23 ways as a sum of consecutive naturals, for example, 111260 + ... + 264080.

It is an arithmetic number, because the mean of its divisors is an integer number (1254362976).

Almost surely, 2^28679917070 is an apocalyptic number.

28679917070 is an abundant number, since it is smaller than the sum of its proper divisors (31529505778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28679917070 is a wasteful number, since it uses less digits than its factorization.

28679917070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153225 (or 153218 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 56.

The spelling of 28679917070 in words is "twenty-eight billion, six hundred seventy-nine million, nine hundred seventeen thousand, seventy".