6423112889557 has 32 divisors (see below), whose sum is σ = 7916712249600. Its totient is φ = 5074734551040.

The previous prime is 6423112889537. The next prime is 6423112889569. The reversal of 6423112889557 is 7559882113246.

It is a happy number.

It is not a de Polignac number, because 6423112889557 - 2⁷ = 6423112889429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6423112889495 and 6423112889504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423112889537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636009694 + ... + 636019792.

It is an arithmetic number, because the mean of its divisors is an integer number (247397257800).

Almost surely, 2^{6423112889557} is an apocalyptic number.

It is an amenable number.

6423112889557 is a deficient number, since it is larger than the sum of its proper divisors (1493599360043).

6423112889557 is a wasteful number, since it uses less digits than its factorization.

6423112889557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19453.

The product of its digits is 29030400, while the sum is 61.

The spelling of 6423112889557 in words is "six trillion, four hundred twenty-three billion, one hundred twelve million, eight hundred eighty-nine thousand, five hundred fifty-seven".