43305428678401 has 4 divisors (see below), whose sum is σ = 45852806835972. Its totient is φ = 40758050520832.

The previous prime is 43305428678371. The next prime is 43305428678443. The reversal of 43305428678401 is 10487682450334.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38745943941376 + 4559484737025 = 6224624^2 + 2135295^2 .

It is a cyclic number.

It is not a de Polignac number, because 43305428678401 - 2⁴³ = 34509335656193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43305428678101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273689078760 + ... + 1273689078793.

It is an arithmetic number, because the mean of its divisors is an integer number (11463201708993).

Almost surely, 2^{43305428678401} is an apocalyptic number.

It is an amenable number.

43305428678401 is a deficient number, since it is larger than the sum of its proper divisors (2547378157571).

43305428678401 is a wasteful number, since it uses less digits than its factorization.

43305428678401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547378157570.

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 43305428678401 in words is "forty-three trillion, three hundred five billion, four hundred twenty-eight million, six hundred seventy-eight thousand, four hundred one".