12527651540 has 12 divisors (see below), whose sum is σ = 26308068276. Its totient is φ = 5011060608.

The previous prime is 12527651537. The next prime is 12527651567. The reversal of 12527651540 is 4515672521.

It can be written as a sum of positive squares in 2 ways, for example, as 3756954436 + 8770697104 = 61294^2 + 93652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12527651494 and 12527651503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313191269 + ... + 313191308.

It is an arithmetic number, because the mean of its divisors is an integer number (2192339023).

Almost surely, 2^12527651540 is an apocalyptic number.

12527651540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12527651540 is an abundant number, since it is smaller than the sum of its proper divisors (13780416736).

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

12527651540 is a wasteful number, since it uses less digits than its factorization.

12527651540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626382586 (or 626382584 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 12527651540 in words is "twelve billion, five hundred twenty-seven million, six hundred fifty-one thousand, five hundred forty".