4057478455547 has 4 divisors (see below), whose sum is σ = 4426340133336. Its totient is φ = 3688616777760.

The previous prime is 4057478455493. The next prime is 4057478455553. The reversal of 4057478455547 is 7455548747504.

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

It is a cyclic number.

It is not a de Polignac number, because 4057478455547 - 2⁸ = 4057478455291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4057478455577) 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, 184430838878 + ... + 184430838899.

It is an arithmetic number, because the mean of its divisors is an integer number (1106585033334).

Almost surely, 2^{4057478455547} is an apocalyptic number.

4057478455547 is a deficient number, since it is larger than the sum of its proper divisors (368861677789).

4057478455547 is a wasteful number, since it uses less digits than its factorization.

4057478455547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368861677788.

The product of its (nonzero) digits is 439040000, while the sum is 65.

The spelling of 4057478455547 in words is "four trillion, fifty-seven billion, four hundred seventy-eight million, four hundred fifty-five thousand, five hundred forty-seven".