42890143851 has 6 divisors (see below), whose sum is σ = 61952430020. Its totient is φ = 28593429228.

The previous prime is 42890143847. The next prime is 42890143873. The reversal of 42890143851 is 15834109824.

42890143851 is a `hidden beast` number, since 428 + 9 + 0 + 143 + 85 + 1 = 666.

It is not a de Polignac number, because 42890143851 - 2² = 42890143847 is a prime.

It is a super-2 number, since 2×42890143851² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42890143797 and 42890143806.

It is not an unprimeable number, because it can be changed into a prime (42890143801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2382785761 + ... + 2382785778.

Almost surely, 2^42890143851 is an apocalyptic number.

42890143851 is a deficient number, since it is larger than the sum of its proper divisors (19062286169).

42890143851 is a wasteful number, since it uses less digits than its factorization.

42890143851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765571545 (or 4765571542 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 42890143851 in words is "forty-two billion, eight hundred ninety million, one hundred forty-three thousand, eight hundred fifty-one".