4027664057 has 4 divisors (see below), whose sum is σ = 4157588736. Its totient is φ = 3897739380.

The previous prime is 4027664041. The next prime is 4027664077. The reversal of 4027664057 is 7504667204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4027664057 - 2⁴ = 4027664041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4027664077) 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, 64962293 + ... + 64962354.

It is an arithmetic number, because the mean of its divisors is an integer number (1039397184).

Almost surely, 2^4027664057 is an apocalyptic number.

It is an amenable number.

4027664057 is a deficient number, since it is larger than the sum of its proper divisors (129924679).

4027664057 is a wasteful number, since it uses less digits than its factorization.

4027664057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129924678.

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 4027664057 is about 63463.8799396948. The cubic root of 4027664057 is about 1591.0521439569.

The spelling of 4027664057 in words is "four billion, twenty-seven million, six hundred sixty-four thousand, fifty-seven".