85555577757 has 64 divisors (see below), whose sum is σ = 130448654336. Its totient is φ = 49502638080.

The previous prime is 85555577753. The next prime is 85555577837. The reversal of 85555577757 is 75777555558.

It is not a de Polignac number, because 85555577757 - 2² = 85555577753 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85555577753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10029228 + ... + 10037754.

It is an arithmetic number, because the mean of its divisors is an integer number (2038260224).

Almost surely, 2^85555577757 is an apocalyptic number.

It is an amenable number.

85555577757 is a deficient number, since it is larger than the sum of its proper divisors (44893076579).

85555577757 is a wasteful number, since it uses less digits than its factorization.

85555577757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8810.

The product of its digits is 300125000, while the sum is 66.

The spelling of 85555577757 in words is "eighty-five billion, five hundred fifty-five million, five hundred seventy-seven thousand, seven hundred fifty-seven".