57147561782 has 16 divisors (see below), whose sum is σ = 87430963200. Its totient is φ = 28009112040.

The previous prime is 57147561781. The next prime is 57147561787. The reversal of 57147561782 is 28716574175.

It is a happy number.

57147561782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57147561781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1279094 + ... + 1323017.

It is an arithmetic number, because the mean of its divisors is an integer number (5464435200).

Almost surely, 2^57147561782 is an apocalyptic number.

57147561782 is a deficient number, since it is larger than the sum of its proper divisors (30283401418).

57147561782 is a wasteful number, since it uses less digits than its factorization.

57147561782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602331.

The product of its digits is 3292800, while the sum is 53.

The spelling of 57147561782 in words is "fifty-seven billion, one hundred forty-seven million, five hundred sixty-one thousand, seven hundred eighty-two".