8557510072042 has 16 divisors (see below), whose sum is σ = 13031772341472. Its totient is φ = 4213624401360.

The previous prime is 8557510072039. The next prime is 8557510072043. The reversal of 8557510072042 is 2402700157558.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8557510071983 and 8557510072001.

It is not an unprimeable number, because it can be changed into a prime (8557510072043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9163809 + ... + 10054372.

It is an arithmetic number, because the mean of its divisors is an integer number (814485771342).

Almost surely, 2^{8557510072042} is an apocalyptic number.

8557510072042 is a deficient number, since it is larger than the sum of its proper divisors (4474262269430).

8557510072042 is a wasteful number, since it uses less digits than its factorization.

8557510072042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19221573.

The product of its (nonzero) digits is 784000, while the sum is 46.

The spelling of 8557510072042 in words is "eight trillion, five hundred fifty-seven billion, five hundred ten million, seventy-two thousand, forty-two".