42450575651213 has 2 divisors, whose sum is σ = 42450575651214. Its totient is φ = 42450575651212.

The previous prime is 42450575651179. The next prime is 42450575651219. The reversal of 42450575651213 is 31215657505424.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32860386830404 + 9590188820809 = 5732398^2 + 3096803^2 .

It is a cyclic number.

It is not a de Polignac number, because 42450575651213 - 2²⁶ = 42450508542349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42450575651219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21225287825606 + 21225287825607.

It is an arithmetic number, because the mean of its divisors is an integer number (21225287825607).

Almost surely, 2^{42450575651213} is an apocalyptic number.

It is an amenable number.

42450575651213 is a deficient number, since it is larger than the sum of its proper divisors (1).

42450575651213 is an equidigital number, since it uses as much as digits as its factorization.

42450575651213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040000, while the sum is 50.

The spelling of 42450575651213 in words is "forty-two trillion, four hundred fifty billion, five hundred seventy-five million, six hundred fifty-one thousand, two hundred thirteen".