42635237638851 has 64 divisors (see below), whose sum is σ = 78111423936000. Its totient is φ = 22596518989440.

The previous prime is 42635237638817. The next prime is 42635237638871. The reversal of 42635237638851 is 15883673253624.

42635237638851 is a `hidden beast` number, since 4 + 2 + 6 + 3 + 523 + 76 + 38 + 8 + 5 + 1 = 666.

It is not a de Polignac number, because 42635237638851 - 2¹⁰ = 42635237637827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42635237638871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 290519736 + ... + 290666453.

It is an arithmetic number, because the mean of its divisors is an integer number (1220490999000).

Almost surely, 2^{42635237638851} is an apocalyptic number.

42635237638851 is a deficient number, since it is larger than the sum of its proper divisors (35476186297149).

42635237638851 is a wasteful number, since it uses less digits than its factorization.

42635237638851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581186241 (or 581186235 counting only the distinct ones).

The product of its digits is 174182400, while the sum is 63.

The spelling of 42635237638851 in words is "forty-two trillion, six hundred thirty-five billion, two hundred thirty-seven million, six hundred thirty-eight thousand, eight hundred fifty-one".