12246538650 has 24 divisors (see below), whose sum is σ = 30371416224. Its totient is φ = 3265743600.

The previous prime is 12246538637. The next prime is 12246538663. The reversal of 12246538650 is 5683564221.

It is an interprime number because it is at equal distance from previous prime (12246538637) and next prime (12246538663).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40821646 + ... + 40821945.

It is an arithmetic number, because the mean of its divisors is an integer number (1265475676).

Almost surely, 2^12246538650 is an apocalyptic number.

12246538650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12246538650 is an abundant number, since it is smaller than the sum of its proper divisors (18124877574).

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

12246538650 is a wasteful number, since it uses less digits than its factorization.

12246538650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81643606 (or 81643601 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 12246538650 in words is "twelve billion, two hundred forty-six million, five hundred thirty-eight thousand, six hundred fifty".