42604551541 has 4 divisors (see below), whose sum is σ = 42679428300. Its totient is φ = 42529674784.

The previous prime is 42604551533. The next prime is 42604551593. The reversal of 42604551541 is 14515540624.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15789179025 + 26815372516 = 125655^2 + 163754^2 .

It is a cyclic number.

It is not a de Polignac number, because 42604551541 - 2³ = 42604551533 is a prime.

It is a super-3 number, since 3×42604551541³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42604551541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42604551841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37437526 + ... + 37438663.

It is an arithmetic number, because the mean of its divisors is an integer number (10669857075).

Almost surely, 2^42604551541 is an apocalyptic number.

It is an amenable number.

42604551541 is a deficient number, since it is larger than the sum of its proper divisors (74876759).

42604551541 is an equidigital number, since it uses as much as digits as its factorization.

42604551541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74876758.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 42604551541 in words is "forty-two billion, six hundred four million, five hundred fifty-one thousand, five hundred forty-one".