28731503676 has 96 divisors (see below), whose sum is σ = 74465395200. Its totient is φ = 8580971520.

The previous prime is 28731503663. The next prime is 28731503681. The reversal of 28731503676 is 67630513782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435936 + ... + 497496.

It is an arithmetic number, because the mean of its divisors is an integer number (775681200).

Almost surely, 2^28731503676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28731503676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37232697600).

28731503676 is an abundant number, since it is smaller than the sum of its proper divisors (45733891524).

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

28731503676 is a wasteful number, since it uses less digits than its factorization.

28731503676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61699 (or 61697 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 28731503676 in words is "twenty-eight billion, seven hundred thirty-one million, five hundred three thousand, six hundred seventy-six".