42686371756 has 18 divisors (see below), whose sum is σ = 86897257188. Its totient is φ = 18294159240.

The previous prime is 42686371733. The next prime is 42686371757. The reversal of 42686371756 is 65717368624.

It is a super-3 number, since 3×42686371756³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42686371697 and 42686371706.

It is not an unprimeable number, because it can be changed into a prime (42686371757) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 108893610 + ... + 108894001.

Almost surely, 2^42686371756 is an apocalyptic number.

It is an amenable number.

42686371756 is an abundant number, since it is smaller than the sum of its proper divisors (44210885432).

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

42686371756 is a wasteful number, since it uses less digits than its factorization.

42686371756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217787629 (or 217787620 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 55.

The spelling of 42686371756 in words is "forty-two billion, six hundred eighty-six million, three hundred seventy-one thousand, seven hundred fifty-six".