57771491486 has 4 divisors (see below), whose sum is σ = 86657237232. Its totient is φ = 28885745742.

The previous prime is 57771491483. The next prime is 57771491507. The reversal of 57771491486 is 68419417775.

57771491486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57771491483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14442872870 + ... + 14442872873.

It is an arithmetic number, because the mean of its divisors is an integer number (21664309308).

Almost surely, 2^57771491486 is an apocalyptic number.

57771491486 is a deficient number, since it is larger than the sum of its proper divisors (28885745746).

57771491486 is a wasteful number, since it uses less digits than its factorization.

57771491486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28885745745.

The product of its digits is 11854080, while the sum is 59.

The spelling of 57771491486 in words is "fifty-seven billion, seven hundred seventy-one million, four hundred ninety-one thousand, four hundred eighty-six".