12732487545 has 32 divisors (see below), whose sum is σ = 21832273152. Its totient is φ = 6319855872.

The previous prime is 12732487541. The next prime is 12732487549. The reversal of 12732487545 is 54578423721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12732487541) and next prime (12732487549).

It is not a de Polignac number, because 12732487545 - 2² = 12732487541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12732487494 and 12732487503.

It is not an unprimeable number, because it can be changed into a prime (12732487541) 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, 485962 + ... + 511491.

It is an arithmetic number, because the mean of its divisors is an integer number (682258536).

Almost surely, 2^12732487545 is an apocalyptic number.

12732487545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12732487545 is a deficient number, since it is larger than the sum of its proper divisors (9099785607).

12732487545 is a wasteful number, since it uses less digits than its factorization.

12732487545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997521.

The product of its digits is 1881600, while the sum is 48.

The spelling of 12732487545 in words is "twelve billion, seven hundred thirty-two million, four hundred eighty-seven thousand, five hundred forty-five".