42051648145 has 8 divisors (see below), whose sum is σ = 54343668456. Its totient is φ = 31053524736.

The previous prime is 42051648143. The next prime is 42051648161. The reversal of 42051648145 is 54184615024.

42051648145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 30338064 + 42021310081 = 5508^2 + 204991^2 .

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

It is not a de Polignac number, because 42051648145 - 2¹ = 42051648143 is a prime.

It is a super-2 number, since 2×42051648145² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42051648098 and 42051648107.

It is not an unprimeable number, because it can be changed into a prime (42051648143) 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, 323474152 + ... + 323474281.

It is an arithmetic number, because the mean of its divisors is an integer number (6792958557).

Almost surely, 2^42051648145 is an apocalyptic number.

It is an amenable number.

42051648145 is a deficient number, since it is larger than the sum of its proper divisors (12292020311).

42051648145 is a wasteful number, since it uses less digits than its factorization.

42051648145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646948451.

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 42051648145 in words is "forty-two billion, fifty-one million, six hundred forty-eight thousand, one hundred forty-five".