12537764480 has 32 divisors (see below), whose sum is σ = 29973094740. Its totient is φ = 5015105536.

The previous prime is 12537764417. The next prime is 12537764489. The reversal of 12537764480 is 8446773521.

It can be written as a sum of positive squares in 2 ways, for example, as 12296148544 + 241615936 = 110888^2 + 15544^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (12537764489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9794489 + ... + 9795768.

Almost surely, 2^12537764480 is an apocalyptic number.

12537764480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12537764480 is an abundant number, since it is smaller than the sum of its proper divisors (17435330260).

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

12537764480 is an equidigital number, since it uses as much as digits as its factorization.

12537764480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19590276 (or 19590264 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 12537764480 in words is "twelve billion, five hundred thirty-seven million, seven hundred sixty-four thousand, four hundred eighty".