28761761572 has 12 divisors (see below), whose sum is σ = 50695192240. Its totient is φ = 14277420936.

The previous prime is 28761761521. The next prime is 28761761573. The reversal of 28761761572 is 27516716782.

It is a super-2 number, since 2×28761761572² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28761761573) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 25864338 + ... + 25865449.

Almost surely, 2^28761761572 is an apocalyptic number.

It is an amenable number.

28761761572 is a deficient number, since it is larger than the sum of its proper divisors (21933430668).

28761761572 is a wasteful number, since it uses less digits than its factorization.

28761761572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51729930 (or 51729928 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 52.

The spelling of 28761761572 in words is "twenty-eight billion, seven hundred sixty-one million, seven hundred sixty-one thousand, five hundred seventy-two".