12702772608 has 64 divisors (see below), whose sum is σ = 33850552320. Its totient is φ = 4220602880.

The previous prime is 12702772583. The next prime is 12702772679. The reversal of 12702772608 is 80627720721.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×12702772608² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12702772608.

It is a congruent number.

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, 66241 + ... + 172607.

It is an arithmetic number, because the mean of its divisors is an integer number (528914880).

Almost surely, 2^12702772608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12702772608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16925276160).

12702772608 is an abundant number, since it is smaller than the sum of its proper divisors (21147779712).

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

12702772608 is a wasteful number, since it uses less digits than its factorization.

12702772608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106695 (or 106683 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 42.

The spelling of 12702772608 in words is "twelve billion, seven hundred two million, seven hundred seventy-two thousand, six hundred eight".