635810045052 has 96 divisors (see below), whose sum is σ = 1826358105600. Its totient is φ = 167645567232.

The previous prime is 635810045029. The next prime is 635810045083. The reversal of 635810045052 is 250540018536.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 635810045052.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4582474 + ... + 4719182.

It is an arithmetic number, because the mean of its divisors is an integer number (19024563600).

Almost surely, 2^635810045052 is an apocalyptic number.

It is an amenable number.

635810045052 is an abundant number, since it is smaller than the sum of its proper divisors (1190548060548).

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

635810045052 is a wasteful number, since it uses less digits than its factorization.

635810045052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140995 (or 140993 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 635810045052 in words is "six hundred thirty-five billion, eight hundred ten million, forty-five thousand, fifty-two".