12507219520 has 56 divisors (see below), whose sum is σ = 30587786424. Its totient is φ = 4867670016.

The previous prime is 12507219511. The next prime is 12507219523. The reversal of 12507219520 is 2591270521.

It can be written as a sum of positive squares in 4 ways, for example, as 2513618496 + 9993601024 = 50136^2 + 99968^2 .

It is a super-3 number, since 3×12507219520³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12507219523) 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, 516337 + ... + 540016.

Almost surely, 2^12507219520 is an apocalyptic number.

12507219520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12507219520 is an abundant number, since it is smaller than the sum of its proper divisors (18080566904).

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

12507219520 is a wasteful number, since it uses less digits than its factorization.

12507219520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056407 (or 1056397 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 12507219520 in words is "twelve billion, five hundred seven million, two hundred nineteen thousand, five hundred twenty".