42508838426 has 4 divisors (see below), whose sum is σ = 63763257642. Its totient is φ = 21254419212.

The previous prime is 42508838423. The next prime is 42508838429. The reversal of 42508838426 is 62483880524.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (42508838423) and next prime (42508838429).

It can be written as a sum of positive squares in only one way, i.e., 41494097401 + 1014741025 = 203701^2 + 31855^2 .

It is not an unprimeable number, because it can be changed into a prime (42508838423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10627209605 + ... + 10627209608.

Almost surely, 2^42508838426 is an apocalyptic number.

42508838426 is a deficient number, since it is larger than the sum of its proper divisors (21254419216).

42508838426 is a wasteful number, since it uses less digits than its factorization.

42508838426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21254419215.

The product of its (nonzero) digits is 2949120, while the sum is 50.

The spelling of 42508838426 in words is "forty-two billion, five hundred eight million, eight hundred thirty-eight thousand, four hundred twenty-six".