42504042475313 has 2 divisors, whose sum is σ = 42504042475314. Its totient is φ = 42504042475312.

The previous prime is 42504042475229. The next prime is 42504042475357. The reversal of 42504042475313 is 31357424040524.

It is a happy number.

It is an a-pointer prime, because the next prime (42504042475357) can be obtained adding 42504042475313 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41310545219584 + 1193497255729 = 6427328^2 + 1092473^2 .

It is a cyclic number.

It is not a de Polignac number, because 42504042475313 - 2¹⁴ = 42504042458929 is a prime.

It is not a weakly prime, because it can be changed into another prime (42504042675313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21252021237656 + 21252021237657.

It is an arithmetic number, because the mean of its divisors is an integer number (21252021237657).

Almost surely, 2^{42504042475313} is an apocalyptic number.

It is an amenable number.

42504042475313 is a deficient number, since it is larger than the sum of its proper divisors (1).

42504042475313 is an equidigital number, since it uses as much as digits as its factorization.

42504042475313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1612800, while the sum is 44.

The spelling of 42504042475313 in words is "forty-two trillion, five hundred four billion, forty-two million, four hundred seventy-five thousand, three hundred thirteen".