12540272480 has 48 divisors (see below), whose sum is σ = 29641417344. Its totient is φ = 5013565440.

The previous prime is 12540272477. The next prime is 12540272483. The reversal of 12540272480 is 8427204521.

It is an interprime number because it is at equal distance from previous prime (12540272477) and next prime (12540272483).

It is a self number, because there is not a number n which added to its sum of digits gives 12540272480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540272483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314129 + ... + 351791.

It is an arithmetic number, because the mean of its divisors is an integer number (617529528).

Almost surely, 2^12540272480 is an apocalyptic number.

12540272480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12540272480 is an abundant number, since it is smaller than the sum of its proper divisors (17101144864).

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

12540272480 is a wasteful number, since it uses less digits than its factorization.

12540272480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39759 (or 39751 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 35.

The spelling of 12540272480 in words is "twelve billion, five hundred forty million, two hundred seventy-two thousand, four hundred eighty".