635140128645 has 96 divisors (see below), whose sum is σ = 1208381825664. Its totient is φ = 306056793600.

The previous prime is 635140128619. The next prime is 635140128653. The reversal of 635140128645 is 546821041536.

635140128645 is a `hidden beast` number, since 6 + 3 + 514 + 0 + 12 + 86 + 45 = 666.

It is not a de Polignac number, because 635140128645 - 2³¹ = 632992644997 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 635140128645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68875135 + ... + 68884355.

It is an arithmetic number, because the mean of its divisors is an integer number (12587310684).

Almost surely, 2^635140128645 is an apocalyptic number.

It is an amenable number.

635140128645 is a deficient number, since it is larger than the sum of its proper divisors (573241697019).

635140128645 is a wasteful number, since it uses less digits than its factorization.

635140128645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10083 (or 10080 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 635140128645 in words is "six hundred thirty-five billion, one hundred forty million, one hundred twenty-eight thousand, six hundred forty-five".