42345304544513 has 16 divisors (see below), whose sum is σ = 44329768369920. Its totient is φ = 40409374379136.

The previous prime is 42345304544509. The next prime is 42345304544531. The reversal of 42345304544513 is 31544540354324.

It is a cyclic number.

It is not a de Polignac number, because 42345304544513 - 2² = 42345304544509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42345304544533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17261870 + ... + 19561767.

It is an arithmetic number, because the mean of its divisors is an integer number (2770610523120).

Almost surely, 2^{42345304544513} is an apocalyptic number.

42345304544513 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42345304544513 is a deficient number, since it is larger than the sum of its proper divisors (1984463825407).

42345304544513 is a wasteful number, since it uses less digits than its factorization.

42345304544513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36824296.

The product of its (nonzero) digits is 6912000, while the sum is 47.

Adding to 42345304544513 its reverse (31544540354324), we get a palindrome (73889844898837).

The spelling of 42345304544513 in words is "forty-two trillion, three hundred forty-five billion, three hundred four million, five hundred forty-four thousand, five hundred thirteen".