28310418049 has 9 divisors (see below), whose sum is σ = 28582365513. Its totient is φ = 28041038592.

The previous prime is 28310418047. The next prime is 28310418091. The reversal of 28310418049 is 94081401382.

The square root of 28310418049 is 168257.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 18907625025 + 9402793024 = 137505^2 + 96968^2 .

It is not a de Polignac number, because 28310418049 - 2¹ = 28310418047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28310418047) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19012297 + ... + 19013785.

Almost surely, 2^28310418049 is an apocalyptic number.

28310418049 is the 168257-th square number.

28310418049 is the 84129-th centered octagonal number.

It is an amenable number.

28310418049 is a deficient number, since it is larger than the sum of its proper divisors (271947464).

28310418049 is an frugal number, since it uses more digits than its factorization.

28310418049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 28310418049 in words is "twenty-eight billion, three hundred ten million, four hundred eighteen thousand, forty-nine".