42809492523 has 32 divisors (see below), whose sum is σ = 66303557632. Its totient is φ = 24064452000.

The previous prime is 42809492471. The next prime is 42809492533. The reversal of 42809492523 is 32529490824.

42809492523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42809492523 - 2⁶ = 42809492459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42809492533) 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, 261078 + ... + 392148.

It is an arithmetic number, because the mean of its divisors is an integer number (2071986176).

Almost surely, 2^42809492523 is an apocalyptic number.

42809492523 is a deficient number, since it is larger than the sum of its proper divisors (23494065109).

42809492523 is a wasteful number, since it uses less digits than its factorization.

42809492523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131335.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 42809492523 in words is "forty-two billion, eight hundred nine million, four hundred ninety-two thousand, five hundred twenty-three".