13212752650 has 24 divisors (see below), whose sum is σ = 24755117580. Its totient is φ = 5246520960.

The previous prime is 13212752639. The next prime is 13212752731. The reversal of 13212752650 is 5625721231.

It can be written as a sum of positive squares in 6 ways, for example, as 1816549641 + 11396203009 = 42621^2 + 106753^2 .

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, 957585 + ... + 971284.

Almost surely, 2^13212752650 is an apocalyptic number.

13212752650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13212752650 is a deficient number, since it is larger than the sum of its proper divisors (11542364930).

13212752650 is a wasteful number, since it uses less digits than its factorization.

13212752650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929018 (or 1929013 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 13212752650 in words is "thirteen billion, two hundred twelve million, seven hundred fifty-two thousand, six hundred fifty".