12905641610 has 8 divisors (see below), whose sum is σ = 23230154916. Its totient is φ = 5162256640.

The previous prime is 12905641607. The next prime is 12905641621. The reversal of 12905641610 is 1614650921.

It is a Cunningham number, because it is equal to 113603²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 12905641609 + 1 = 113603^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645282071 + ... + 645282090.

Almost surely, 2^12905641610 is an apocalyptic number.

12905641610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12905641610 is a deficient number, since it is larger than the sum of its proper divisors (10324513306).

12905641610 is a wasteful number, since it uses less digits than its factorization.

12905641610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290564168.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 12905641610 in words is "twelve billion, nine hundred five million, six hundred forty-one thousand, six hundred ten".