12702145650 has 24 divisors (see below), whose sum is σ = 31501321584. Its totient is φ = 3387238800.

The previous prime is 12702145637. The next prime is 12702145657. The reversal of 12702145650 is 5654120721.

It is a super-2 number, since 2×12702145650² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12702145657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42340336 + ... + 42340635.

It is an arithmetic number, because the mean of its divisors is an integer number (1312555066).

Almost surely, 2^12702145650 is an apocalyptic number.

12702145650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12702145650 is an abundant number, since it is smaller than the sum of its proper divisors (18799175934).

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

12702145650 is a wasteful number, since it uses less digits than its factorization.

12702145650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84680986 (or 84680981 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 12702145650 in words is "twelve billion, seven hundred two million, one hundred forty-five thousand, six hundred fifty".