12745402880 has 160 divisors (see below), whose sum is σ = 35406733824. Its totient is φ = 4309549056.

The previous prime is 12745402867. The next prime is 12745402903. The reversal of 12745402880 is 8820454721.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1303289 + ... + 1313031.

Almost surely, 2^12745402880 is an apocalyptic number.

12745402880 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 12745402880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17703366912).

12745402880 is an abundant number, since it is smaller than the sum of its proper divisors (22661330944).

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

12745402880 is an frugal number, since it uses more digits than its factorization.

12745402880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9846 (or 9830 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 41.

The spelling of 12745402880 in words is "twelve billion, seven hundred forty-five million, four hundred two thousand, eight hundred eighty".