12512621472 has 48 divisors (see below), whose sum is σ = 35372221920. Its totient is φ = 3850036992.

The previous prime is 12512621467. The next prime is 12512621477. The reversal of 12512621472 is 27412621521.

It is an interprime number because it is at equal distance from previous prime (12512621467) and next prime (12512621477).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×12512621472² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12512621477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5011822 + ... + 5014317.

It is an arithmetic number, because the mean of its divisors is an integer number (736921290).

Almost surely, 2^12512621472 is an apocalyptic number.

12512621472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12512621472 is an abundant number, since it is smaller than the sum of its proper divisors (22859600448).

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

12512621472 is a wasteful number, since it uses less digits than its factorization.

12512621472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026165 (or 10026157 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The spelling of 12512621472 in words is "twelve billion, five hundred twelve million, six hundred twenty-one thousand, four hundred seventy-two".