28766313125 has 60 divisors (see below), whose sum is σ = 40262421276. Its totient is φ = 20523360000.

The previous prime is 28766313091. The next prime is 28766313131. The reversal of 28766313125 is 52131366782.

It can be written as a sum of positive squares in 10 ways, for example, as 11720660644 + 17045652481 = 108262^2 + 130559^2 .

It is not a de Polignac number, because 28766313125 - 2¹⁸ = 28766050981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4004537 + ... + 4011713.

Almost surely, 2^28766313125 is an apocalyptic number.

28766313125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28766313125 is a deficient number, since it is larger than the sum of its proper divisors (11496108151).

28766313125 is an equidigital number, since it uses as much as digits as its factorization.

28766313125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7272 (or 7246 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The spelling of 28766313125 in words is "twenty-eight billion, seven hundred sixty-six million, three hundred thirteen thousand, one hundred twenty-five".