635148813485 has 4 divisors (see below), whose sum is σ = 762178576188. Its totient is φ = 508119050784.

The previous prime is 635148813457. The next prime is 635148813503. The reversal of 635148813485 is 584318841536.

635148813485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 186480603556 + 448668209929 = 431834^2 + 669827^2 .

It is a cyclic number.

It is not a de Polignac number, because 635148813485 - 2¹⁰ = 635148812461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 635148813485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63514881344 + ... + 63514881353.

It is an arithmetic number, because the mean of its divisors is an integer number (190544644047).

Almost surely, 2^635148813485 is an apocalyptic number.

It is an amenable number.

635148813485 is a deficient number, since it is larger than the sum of its proper divisors (127029762703).

635148813485 is a wasteful number, since it uses less digits than its factorization.

635148813485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127029762702.

The product of its digits is 11059200, while the sum is 56.

The spelling of 635148813485 in words is "six hundred thirty-five billion, one hundred forty-eight million, eight hundred thirteen thousand, four hundred eighty-five".