42421244061 has 32 divisors (see below), whose sum is σ = 65406071808. Its totient is φ = 23954895360.

The previous prime is 42421244039. The next prime is 42421244069. The reversal of 42421244061 is 16044212424.

It is not a de Polignac number, because 42421244061 - 2²¹ = 42419146909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42421244069) 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, 1376026 + ... + 1406516.

It is an arithmetic number, because the mean of its divisors is an integer number (2043939744).

Almost surely, 2^42421244061 is an apocalyptic number.

It is an amenable number.

42421244061 is a deficient number, since it is larger than the sum of its proper divisors (22984827747).

42421244061 is a wasteful number, since it uses less digits than its factorization.

42421244061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31281.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 42421244061 its reverse (16044212424), we get a palindrome (58465456485).

The spelling of 42421244061 in words is "forty-two billion, four hundred twenty-one million, two hundred forty-four thousand, sixty-one".