42633631273 has 2 divisors, whose sum is σ = 42633631274. Its totient is φ = 42633631272.

The previous prime is 42633631259. The next prime is 42633631283. The reversal of 42633631273 is 37213633624.

42633631273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31036925929 + 11596705344 = 176173^2 + 107688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42633631273 is a prime.

It is not a weakly prime, because it can be changed into another prime (42633631253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21316815636 + 21316815637.

It is an arithmetic number, because the mean of its divisors is an integer number (21316815637).

Almost surely, 2^42633631273 is an apocalyptic number.

It is an amenable number.

42633631273 is a deficient number, since it is larger than the sum of its proper divisors (1).

42633631273 is an equidigital number, since it uses as much as digits as its factorization.

42633631273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 40.

The spelling of 42633631273 in words is "forty-two billion, six hundred thirty-three million, six hundred thirty-one thousand, two hundred seventy-three".