42633521461 has 2 divisors, whose sum is σ = 42633521462. Its totient is φ = 42633521460.

The previous prime is 42633521453. The next prime is 42633521501. The reversal of 42633521461 is 16412533624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42539062500 + 94458961 = 206250^2 + 9719^2 .

It is a cyclic number.

It is not a de Polignac number, because 42633521461 - 2³ = 42633521453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42633521461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42633521261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21316760730 + 21316760731.

It is an arithmetic number, because the mean of its divisors is an integer number (21316760731).

Almost surely, 2^42633521461 is an apocalyptic number.

It is an amenable number.

42633521461 is a deficient number, since it is larger than the sum of its proper divisors (1).

42633521461 is an equidigital number, since it uses as much as digits as its factorization.

42633521461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The spelling of 42633521461 in words is "forty-two billion, six hundred thirty-three million, five hundred twenty-one thousand, four hundred sixty-one".