28806301901 has 16 divisors (see below), whose sum is σ = 31175529840. Its totient is φ = 26459136000.

The previous prime is 28806301883. The next prime is 28806301921. The reversal of 28806301901 is 10910360882.

It can be written as a sum of positive squares in 8 ways, for example, as 707826025 + 28098475876 = 26605^2 + 167626^2 .

It is a cyclic number.

It is not a de Polignac number, because 28806301901 - 2¹⁰ = 28806300877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28806301921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9088445 + ... + 9091613.

It is an arithmetic number, because the mean of its divisors is an integer number (1948470615).

Almost surely, 2^28806301901 is an apocalyptic number.

It is an amenable number.

28806301901 is a deficient number, since it is larger than the sum of its proper divisors (2369227939).

28806301901 is a wasteful number, since it uses less digits than its factorization.

28806301901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6416.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 28806301901 in words is "twenty-eight billion, eight hundred six million, three hundred one thousand, nine hundred one".