57147748855 has 4 divisors (see below), whose sum is σ = 68577298632. Its totient is φ = 45718199080.

The previous prime is 57147748849. The next prime is 57147748871. The reversal of 57147748855 is 55884774175.

It is a happy number.

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

It is not a de Polignac number, because 57147748855 - 2¹¹ = 57147746807 is a prime.

It is a super-2 number, since 2×57147748855² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57147748793 and 57147748802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5714774881 + ... + 5714774890.

It is an arithmetic number, because the mean of its divisors is an integer number (17144324658).

Almost surely, 2^57147748855 is an apocalyptic number.

57147748855 is a deficient number, since it is larger than the sum of its proper divisors (11429549777).

57147748855 is a wasteful number, since it uses less digits than its factorization.

57147748855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11429549776.

The product of its digits is 43904000, while the sum is 61.

The spelling of 57147748855 in words is "fifty-seven billion, one hundred forty-seven million, seven hundred forty-eight thousand, eight hundred fifty-five".