42646134331 has 4 divisors (see below), whose sum is σ = 42892643952. Its totient is φ = 42399624712.

The previous prime is 42646134313. The next prime is 42646134341. The reversal of 42646134331 is 13343164624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42646134331 - 2⁵ = 42646134299 is a prime.

It is a super-2 number, since 2×42646134331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42646134341) 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, 123254551 + ... + 123254896.

It is an arithmetic number, because the mean of its divisors is an integer number (10723160988).

Almost surely, 2^42646134331 is an apocalyptic number.

42646134331 is a deficient number, since it is larger than the sum of its proper divisors (246509621).

42646134331 is a wasteful number, since it uses less digits than its factorization.

42646134331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246509620.

The product of its digits is 124416, while the sum is 37.

Adding to 42646134331 its reverse (13343164624), we get a palindrome (55989298955).

The spelling of 42646134331 in words is "forty-two billion, six hundred forty-six million, one hundred thirty-four thousand, three hundred thirty-one".