63857606071 has 16 divisors (see below), whose sum is σ = 74020497408. Its totient is φ = 53955633600.

The previous prime is 63857606051. The next prime is 63857606083. The reversal of 63857606071 is 17060675836.

It is a cyclic number.

It is not a de Polignac number, because 63857606071 - 2¹⁷ = 63857474999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63857606051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922686 + ... + 989476.

It is an arithmetic number, because the mean of its divisors is an integer number (4626281088).

Almost surely, 2^63857606071 is an apocalyptic number.

63857606071 is a deficient number, since it is larger than the sum of its proper divisors (10162891337).

63857606071 is a wasteful number, since it uses less digits than its factorization.

63857606071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68742.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 63857606071 in words is "sixty-three billion, eight hundred fifty-seven million, six hundred six thousand, seventy-one".