43274479661568 has 200 divisors, whose sum is σ = 131599970224668. Its totient is φ = 14152659296256.

The previous prime is 43274479661563. The next prime is 43274479661591. The reversal of 43274479661568 is 86516697447234.

43274479661568 is a `hidden beast` number, since 4 + 3 + 27 + 4 + 479 + 66 + 15 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 36340063305984 + 6934416355584 = 6028272^2 + 2633328^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 43274479661496 and 43274479661505.

It is not an unprimeable number, because it can be changed into a prime (43274479661563) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7645971 + ... + 12042002.

Almost surely, 2^{43274479661568} is an apocalyptic number.

43274479661568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

43274479661568 is an abundant number, since it is smaller than the sum of its proper divisors (88325490563100).

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

43274479661568 is an equidigital number, since it uses as much as digits as its factorization.

43274479661568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19688056 (or 19688031 counting only the distinct ones).

The product of its digits is 1463132160, while the sum is 72.

The spelling of 43274479661568 in words is "forty-three trillion, two hundred seventy-four billion, four hundred seventy-nine million, six hundred sixty-one thousand, five hundred sixty-eight".