13056734280 has 32 divisors (see below), whose sum is σ = 39170203200. Its totient is φ = 3481795776.

The previous prime is 13056734267. The next prime is 13056734291. The reversal of 13056734280 is 8243765031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54402940 + ... + 54403179.

It is an arithmetic number, because the mean of its divisors is an integer number (1224068850).

Almost surely, 2^13056734280 is an apocalyptic number.

13056734280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13056734280 is an abundant number, since it is smaller than the sum of its proper divisors (26113468920).

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

13056734280 is a wasteful number, since it uses less digits than its factorization.

13056734280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108806133 (or 108806129 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 13056734280 in words is "thirteen billion, fifty-six million, seven hundred thirty-four thousand, two hundred eighty".