12537246280 has 128 divisors (see below), whose sum is σ = 31142361600. Its totient is φ = 4514245632.

The previous prime is 12537246259. The next prime is 12537246283. The reversal of 12537246280 is 8264273521.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (12537246283) 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, 3407802 + ... + 3411478.

It is an arithmetic number, because the mean of its divisors is an integer number (243299700).

Almost surely, 2^12537246280 is an apocalyptic number.

12537246280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12537246280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15571180800).

12537246280 is an abundant number, since it is smaller than the sum of its proper divisors (18605115320).

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

12537246280 is a wasteful number, since it uses less digits than its factorization.

12537246280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863 (or 3859 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 12537246280 in words is "twelve billion, five hundred thirty-seven million, two hundred forty-six thousand, two hundred eighty".