42523934261 has 12 divisors (see below), whose sum is σ = 44508448320. Its totient is φ = 40624503480.

The previous prime is 42523934239. The next prime is 42523934311. The reversal of 42523934261 is 16243932524.

It is not a de Polignac number, because 42523934261 - 2¹⁰ = 42523933237 is a prime.

It is a super-2 number, since 2×42523934261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42523939261) 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 11 ways as a sum of consecutive naturals, for example, 379460 + ... + 478578.

It is an arithmetic number, because the mean of its divisors is an integer number (3709037360).

Almost surely, 2^42523934261 is an apocalyptic number.

It is an amenable number.

42523934261 is a deficient number, since it is larger than the sum of its proper divisors (1984514059).

42523934261 is an equidigital number, since it uses as much as digits as its factorization.

42523934261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99976 (or 99953 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The spelling of 42523934261 in words is "forty-two billion, five hundred twenty-three million, nine hundred thirty-four thousand, two hundred sixty-one".