27487405125 has 36 divisors (see below), whose sum is σ = 49560655404. Its totient is φ = 14656983600.

The previous prime is 27487405109. The next prime is 27487405171. The reversal of 27487405125 is 52150478472.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

27487405125 is a `hidden beast` number, since 2 + 7 + 487 + 40 + 5 + 125 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 879596964 + 26607808161 = 29658^2 + 163119^2 .

It is not a de Polignac number, because 27487405125 - 2⁴ = 27487405109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5558404 + ... + 5563346.

Almost surely, 2^27487405125 is an apocalyptic number.

27487405125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27487405125 is a deficient number, since it is larger than the sum of its proper divisors (22073250279).

27487405125 is an frugal number, since it uses more digits than its factorization.

27487405125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9907 (or 4951 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 45.

Multiplying 27487405125 by its sum of digits (45), we get a square (1236933230625 = 1112175²).

27487405125 divided by its sum of digits (45) gives a square (610831225 = 24715²).

The spelling of 27487405125 in words is "twenty-seven billion, four hundred eighty-seven million, four hundred five thousand, one hundred twenty-five".