28726546384 has 10 divisors (see below), whose sum is σ = 55657683650. Its totient is φ = 14363273184.

The previous prime is 28726546369. The next prime is 28726546391. The reversal of 28726546384 is 48364562782.

It can be written as a sum of positive squares in only one way, i.e., 28382814784 + 343731600 = 168472^2 + 18540^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 897704559 + ... + 897704590.

It is an arithmetic number, because the mean of its divisors is an integer number (5565768365).

Almost surely, 2^28726546384 is an apocalyptic number.

It is an amenable number.

28726546384 is a deficient number, since it is larger than the sum of its proper divisors (26931137266).

28726546384 is a wasteful number, since it uses less digits than its factorization.

28726546384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795409157 (or 1795409151 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 55.

The spelling of 28726546384 in words is "twenty-eight billion, seven hundred twenty-six million, five hundred forty-six thousand, three hundred eighty-four".