12794472450 has 216 divisors, whose sum is σ = 36369640944. Its totient is φ = 3344068800.

The previous prime is 12794472401. The next prime is 12794472451. The reversal of 12794472450 is 5427449721.

12794472450 is a `hidden beast` number, since 127 + 9 + 4 + 4 + 72 + 450 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 12794472396 and 12794472405.

It is not an unprimeable number, because it can be changed into a prime (12794472451) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 45210009 + ... + 45210291.

Almost surely, 2^12794472450 is an apocalyptic number.

12794472450 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 12794472450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18184820472).

12794472450 is an abundant number, since it is smaller than the sum of its proper divisors (23575168494).

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

12794472450 is an equidigital number, since it uses as much as digits as its factorization.

12794472450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 12794472450 in words is "twelve billion, seven hundred ninety-four million, four hundred seventy-two thousand, four hundred fifty".