65127887557 has 8 divisors (see below), whose sum is σ = 65631516192. Its totient is φ = 64624357200.

The previous prime is 65127887527. The next prime is 65127887563. The reversal of 65127887557 is 75578872156.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65127887557 - 2³⁵ = 30768149189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65127887495 and 65127887504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65127887527) 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, 1861338 + ... + 1896004.

It is an arithmetic number, because the mean of its divisors is an integer number (8203939524).

Almost surely, 2^65127887557 is an apocalyptic number.

It is an amenable number.

65127887557 is a deficient number, since it is larger than the sum of its proper divisors (503628635).

65127887557 is a wasteful number, since it uses less digits than its factorization.

65127887557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49139.

The product of its digits is 32928000, while the sum is 61.

The spelling of 65127887557 in words is "sixty-five billion, one hundred twenty-seven million, eight hundred eighty-seven thousand, five hundred fifty-seven".