42134746557 has 16 divisors (see below), whose sum is σ = 57244377728. Its totient is φ = 27561461760.

The previous prime is 42134746553. The next prime is 42134746559. The reversal of 42134746557 is 75564743124.

It is not a de Polignac number, because 42134746557 - 2² = 42134746553 is a prime.

It is the 205268-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42134746553) by changing a digit.

It is a nontrivial repunit in base 205267.

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 15 ways as a sum of consecutive naturals, for example, 456169 + ... + 540702.

It is an arithmetic number, because the mean of its divisors is an integer number (3577773608).

Almost surely, 2^42134746557 is an apocalyptic number.

It is an amenable number.

42134746557 is a deficient number, since it is larger than the sum of its proper divisors (15109631171).

42134746557 is a wasteful number, since it uses less digits than its factorization.

42134746557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997140.

The product of its digits is 2822400, while the sum is 48.

The spelling of 42134746557 in words is "forty-two billion, one hundred thirty-four million, seven hundred forty-six thousand, five hundred fifty-seven".