12651512650 has 24 divisors (see below), whose sum is σ = 26893501920. Its totient is φ = 4337661360.

The previous prime is 12651512617. The next prime is 12651512651. The reversal of 12651512650 is 5621515621.

It is a super-3 number, since 3×12651512650³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12651512651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18073240 + ... + 18073939.

It is an arithmetic number, because the mean of its divisors is an integer number (1120562580).

Almost surely, 2^12651512650 is an apocalyptic number.

12651512650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12651512650 is an abundant number, since it is smaller than the sum of its proper divisors (14241989270).

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

12651512650 is a wasteful number, since it uses less digits than its factorization.

12651512650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36147198 (or 36147193 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 12651512650 in words is "twelve billion, six hundred fifty-one million, five hundred twelve thousand, six hundred fifty".