28772301789 has 64 divisors (see below), whose sum is σ = 55454330880. Its totient is φ = 14296772160.

The previous prime is 28772301709. The next prime is 28772301799. The reversal of 28772301789 is 98710327782.

It is not a de Polignac number, because 28772301789 - 2⁸ = 28772301533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28772301709) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 253042 + ... + 348675.

It is an arithmetic number, because the mean of its divisors is an integer number (866473920).

Almost surely, 2^28772301789 is an apocalyptic number.

It is an amenable number.

28772301789 is a deficient number, since it is larger than the sum of its proper divisors (26682029091).

28772301789 is a wasteful number, since it uses less digits than its factorization.

28772301789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601767 (or 601761 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The spelling of 28772301789 in words is "twenty-eight billion, seven hundred seventy-two million, three hundred one thousand, seven hundred eighty-nine".