12797199238950 has 576 divisors, whose sum is σ = 41569779363840. Its totient is φ = 2757220197120.

The previous prime is 12797199238921. The next prime is 12797199238981. The reversal of 12797199238950 is 5983299179721.

12797199238950 is a `hidden beast` number, since 1 + 2 + 7 + 9 + 7 + 199 + 2 + 389 + 50 = 666.

It is a super-2 number, since 2×12797199238950² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 19779287527 + ... + 19779288173.

It is an arithmetic number, because the mean of its divisors is an integer number (72169755840).

Almost surely, 2^{12797199238950} is an apocalyptic number.

12797199238950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12797199238950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20784889681920).

12797199238950 is an abundant number, since it is smaller than the sum of its proper divisors (28772580124890).

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

12797199238950 is a wasteful number, since it uses less digits than its factorization.

12797199238950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 154314720, while the sum is 72.

The spelling of 12797199238950 in words is "twelve trillion, seven hundred ninety-seven billion, one hundred ninety-nine million, two hundred thirty-eight thousand, nine hundred fifty".