43864546057 has 4 divisors (see below), whose sum is σ = 44934413076. Its totient is φ = 42794679040.

The previous prime is 43864546049. The next prime is 43864546087. The reversal of 43864546057 is 75064546834.

43864546057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75064546834 = 2 ⋅37532273417.

It can be written as a sum of positive squares in 2 ways, for example, as 4319644176 + 39544901881 = 65724^2 + 198859^2 .

It is a cyclic number.

It is not a de Polignac number, because 43864546057 - 2³ = 43864546049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43864545995 and 43864546013.

It is not an unprimeable number, because it can be changed into a prime (43864546087) 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, 534933448 + ... + 534933529.

It is an arithmetic number, because the mean of its divisors is an integer number (11233603269).

Almost surely, 2^43864546057 is an apocalyptic number.

It is an amenable number.

43864546057 is a deficient number, since it is larger than the sum of its proper divisors (1069867019).

43864546057 is a wasteful number, since it uses less digits than its factorization.

43864546057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069867018.

The product of its (nonzero) digits is 9676800, while the sum is 52.

The spelling of 43864546057 in words is "forty-three billion, eight hundred sixty-four million, five hundred forty-six thousand, fifty-seven".