12681291370 has 32 divisors (see below), whose sum is σ = 25431273216. Its totient is φ = 4513262400.

The previous prime is 12681291367. The next prime is 12681291401. The reversal of 12681291370 is 7319218621.

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, 1221261 + ... + 1231600.

It is an arithmetic number, because the mean of its divisors is an integer number (794727288).

Almost surely, 2^12681291370 is an apocalyptic number.

12681291370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12681291370 is an abundant number, since it is smaller than the sum of its proper divisors (12749981846).

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

12681291370 is a wasteful number, since it uses less digits than its factorization.

12681291370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452926.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 12681291370 in words is "twelve billion, six hundred eighty-one million, two hundred ninety-one thousand, three hundred seventy".