42866050168637 has 4 divisors (see below), whose sum is σ = 45387582531516. Its totient is φ = 40344517805760.

The previous prime is 42866050168597. The next prime is 42866050168727. The reversal of 42866050168637 is 73686105066824.

It is a happy number.

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 37887890438596 + 4978159730041 = 6155314^2 + 2231179^2 .

It is a cyclic number.

It is not a de Polignac number, because 42866050168637 - 2¹⁶ = 42866050103101 is a prime.

It is a super-2 number, since 2×42866050168637² (a number of 28 digits) contains 22 as substring.

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 42866050168637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42866050168237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260766181414 + ... + 1260766181447.

It is an arithmetic number, because the mean of its divisors is an integer number (11346895632879).

Almost surely, 2^{42866050168637} is an apocalyptic number.

It is an amenable number.

42866050168637 is a deficient number, since it is larger than the sum of its proper divisors (2521532362879).

42866050168637 is a wasteful number, since it uses less digits than its factorization.

42866050168637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521532362878.

The product of its (nonzero) digits is 69672960, while the sum is 62.

The spelling of 42866050168637 in words is "forty-two trillion, eight hundred sixty-six billion, fifty million, one hundred sixty-eight thousand, six hundred thirty-seven".