57827087961 has 4 divisors (see below), whose sum is σ = 77102783952. Its totient is φ = 38551391972.

The previous prime is 57827087947. The next prime is 57827087963. The reversal of 57827087961 is 16978072875.

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 57827087961 - 2¹³ = 57827079769 is a prime.

It is a super-2 number, since 2×57827087961² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57827087895 and 57827087904.

It is not an unprimeable number, because it can be changed into a prime (57827087963) 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, 9637847991 + ... + 9637847996.

It is an arithmetic number, because the mean of its divisors is an integer number (19275695988).

Almost surely, 2^57827087961 is an apocalyptic number.

It is an amenable number.

57827087961 is a deficient number, since it is larger than the sum of its proper divisors (19275695991).

57827087961 is a wasteful number, since it uses less digits than its factorization.

57827087961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19275695990.

The product of its (nonzero) digits is 11854080, while the sum is 60.

The spelling of 57827087961 in words is "fifty-seven billion, eight hundred twenty-seven million, eighty-seven thousand, nine hundred sixty-one".