42261434361 has 24 divisors (see below), whose sum is σ = 64268649120. Its totient is φ = 26686656576.

The previous prime is 42261434357. The next prime is 42261434363. The reversal of 42261434361 is 16343416224.

42261434361 is a `hidden beast` number, since 4 + 2 + 2 + 614 + 3 + 4 + 36 + 1 = 666.

It is not a de Polignac number, because 42261434361 - 2² = 42261434357 is a prime.

It is a super-2 number, since 2×42261434361² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42261434363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1103445 + ... + 1141101.

It is an arithmetic number, because the mean of its divisors is an integer number (2677860380).

Almost surely, 2^42261434361 is an apocalyptic number.

It is an amenable number.

42261434361 is a deficient number, since it is larger than the sum of its proper divisors (22007214759).

42261434361 is a wasteful number, since it uses less digits than its factorization.

42261434361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44245 (or 44242 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The spelling of 42261434361 in words is "forty-two billion, two hundred sixty-one million, four hundred thirty-four thousand, three hundred sixty-one".