42021145461 has 8 divisors (see below), whose sum is σ = 56431275040. Its totient is φ = 27812556432.

The previous prime is 42021145423. The next prime is 42021145487. The reversal of 42021145461 is 16454112024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42021145461 - 2⁷ = 42021145333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42021185461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50384650 + ... + 50385483.

It is an arithmetic number, because the mean of its divisors is an integer number (7053909380).

Almost surely, 2^42021145461 is an apocalyptic number.

It is an amenable number.

42021145461 is a deficient number, since it is larger than the sum of its proper divisors (14410129579).

42021145461 is a wasteful number, since it uses less digits than its factorization.

42021145461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100770275.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 42021145461 its reverse (16454112024), we get a palindrome (58475257485).

The spelling of 42021145461 in words is "forty-two billion, twenty-one million, one hundred forty-five thousand, four hundred sixty-one".