57278451775 has 24 divisors (see below), whose sum is σ = 71286044544. Its totient is φ = 45654856800.

The previous prime is 57278451757. The next prime is 57278451779. The reversal of 57278451775 is 57715487275.

It is a happy number.

It is not a de Polignac number, because 57278451775 - 2⁵ = 57278451743 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 (57278451779) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8033262 + ... + 8040388.

It is an arithmetic number, because the mean of its divisors is an integer number (2970251856).

Almost surely, 2^57278451775 is an apocalyptic number.

57278451775 is a deficient number, since it is larger than the sum of its proper divisors (14007592769).

57278451775 is a wasteful number, since it uses less digits than its factorization.

57278451775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8271 (or 8266 counting only the distinct ones).

The product of its digits is 19208000, while the sum is 58.

The spelling of 57278451775 in words is "fifty-seven billion, two hundred seventy-eight million, four hundred fifty-one thousand, seven hundred seventy-five".