42326401521 has 16 divisors (see below), whose sum is σ = 60788551680. Its totient is φ = 26120078160.

The previous prime is 42326401501. The next prime is 42326401529. The reversal of 42326401521 is 12510462324.

It is not a de Polignac number, because 42326401521 - 2⁹ = 42326401009 is a prime.

It is a super-2 number, since 2×42326401521² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42326401529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9891831 + ... + 9896108.

It is an arithmetic number, because the mean of its divisors is an integer number (3799284480).

Almost surely, 2^42326401521 is an apocalyptic number.

It is an amenable number.

42326401521 is a deficient number, since it is larger than the sum of its proper divisors (18462150159).

42326401521 is a wasteful number, since it uses less digits than its factorization.

42326401521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19787996.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 42326401521 its reverse (12510462324), we get a palindrome (54836863845).

The spelling of 42326401521 in words is "forty-two billion, three hundred twenty-six million, four hundred one thousand, five hundred twenty-one".