4057478455549 has 8 divisors (see below), whose sum is σ = 4251458578752. Its totient is φ = 3864962333760.

The previous prime is 4057478455493. The next prime is 4057478455553. The reversal of 4057478455549 is 9455548747504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4057478455549 - 2¹⁹ = 4057477931261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4057478555549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365994679 + ... + 366005764.

It is an arithmetic number, because the mean of its divisors is an integer number (531432322344).

Almost surely, 2^{4057478455549} is an apocalyptic number.

It is an amenable number.

4057478455549 is a deficient number, since it is larger than the sum of its proper divisors (193980123203).

4057478455549 is a wasteful number, since it uses less digits than its factorization.

4057478455549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732000707.

The product of its (nonzero) digits is 564480000, while the sum is 67.

The spelling of 4057478455549 in words is "four trillion, fifty-seven billion, four hundred seventy-eight million, four hundred fifty-five thousand, five hundred forty-nine".