43476461723421 has 12 divisors (see below), whose sum is σ = 62800516574172. Its totient is φ = 28983761827776.

The previous prime is 43476461723411. The next prime is 43476461723441. The reversal of 43476461723421 is 12432716467434.

It is a happy number.

43476461723421 is a `hidden beast` number, since 4 + 3 + 4 + 7 + 6 + 46 + 172 + 3 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38128019194521 + 5348442528900 = 6174789^2 + 2312670^2 .

It is not a de Polignac number, because 43476461723421 - 2¹⁵ = 43476461690653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43476461723411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44994376 + ... + 45950481.

It is an arithmetic number, because the mean of its divisors is an integer number (5233376381181).

Almost surely, 2^{43476461723421} is an apocalyptic number.

It is an amenable number.

43476461723421 is a deficient number, since it is larger than the sum of its proper divisors (19324054850751).

43476461723421 is a wasteful number, since it uses less digits than its factorization.

43476461723421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90997980 (or 90997977 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 54.

The spelling of 43476461723421 in words is "forty-three trillion, four hundred seventy-six billion, four hundred sixty-one million, seven hundred twenty-three thousand, four hundred twenty-one".