635873751711055 has 32 divisors (see below), whose sum is σ = 896533499473920. Its totient is φ = 426839847703680.

The previous prime is 635873751711053. The next prime is 635873751711061. The reversal of 635873751711055 is 550117157378536.

It is a happy number.

It is not a de Polignac number, because 635873751711055 - 2¹ = 635873751711053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635873751711053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34562917 + ... + 49662286.

It is an arithmetic number, because the mean of its divisors is an integer number (28016671858560).

Almost surely, 2^{635873751711055} is an apocalyptic number.

635873751711055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

635873751711055 is a deficient number, since it is larger than the sum of its proper divisors (260659747762865).

635873751711055 is a wasteful number, since it uses less digits than its factorization.

635873751711055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84235791.

The product of its (nonzero) digits is 92610000, while the sum is 64.

The spelling of 635873751711055 in words is "six hundred thirty-five trillion, eight hundred seventy-three billion, seven hundred fifty-one million, seven hundred eleven thousand, fifty-five".