12527571240 has 128 divisors (see below), whose sum is σ = 41795740800. Its totient is φ = 3337712640.

The previous prime is 12527571239. The next prime is 12527571241. The reversal of 12527571240 is 4217572521.

12527571240 is a `hidden beast` number, since 1 + 2 + 527 + 5 + 7 + 124 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12527571239) and next prime (12527571241).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12527571195 and 12527571204.

It is not an unprimeable number, because it can be changed into a prime (12527571241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1381120 + ... + 1390160.

It is an arithmetic number, because the mean of its divisors is an integer number (326529225).

Almost surely, 2^12527571240 is an apocalyptic number.

12527571240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12527571240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20897870400).

12527571240 is an abundant number, since it is smaller than the sum of its proper divisors (29268169560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12527571240 is a wasteful number, since it uses less digits than its factorization.

12527571240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10344 (or 10334 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The spelling of 12527571240 in words is "twelve billion, five hundred twenty-seven million, five hundred seventy-one thousand, two hundred forty".