635540045536 has 48 divisors (see below), whose sum is σ = 1412034528240. Its totient is φ = 278920391680.

The previous prime is 635540045513. The next prime is 635540045551.

635540045536 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×635540045536² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31119301 + ... + 31139716.

It is an arithmetic number, because the mean of its divisors is an integer number (29417386005).

Almost surely, 2^635540045536 is an apocalyptic number.

It is an amenable number.

635540045536 is an abundant number, since it is smaller than the sum of its proper divisors (776494482704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

635540045536 is a wasteful number, since it uses less digits than its factorization.

635540045536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62259067 (or 62259059 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 46.

The spelling of 635540045536 in words is "six hundred thirty-five billion, five hundred forty million, forty-five thousand, five hundred thirty-six".