42026021481 has 4 divisors (see below), whose sum is σ = 56034695312. Its totient is φ = 28017347652.

The previous prime is 42026021461. The next prime is 42026021483. The reversal of 42026021481 is 18412062024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42026021481 - 2¹⁰ = 42026020457 is a prime.

It is a super-2 number, since 2×42026021481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42026021483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7004336911 + ... + 7004336916.

It is an arithmetic number, because the mean of its divisors is an integer number (14008673828).

Almost surely, 2^42026021481 is an apocalyptic number.

It is an amenable number.

42026021481 is a deficient number, since it is larger than the sum of its proper divisors (14008673831).

42026021481 is a wasteful number, since it uses less digits than its factorization.

42026021481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14008673830.

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 42026021481 in words is "forty-two billion, twenty-six million, twenty-one thousand, four hundred eighty-one".