61233173633 has 2 divisors, whose sum is σ = 61233173634. Its totient is φ = 61233173632.

The previous prime is 61233173611. The next prime is 61233173669. The reversal of 61233173633 is 33637133216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34947685249 + 26285488384 = 186943^2 + 162128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61233173633 is a prime.

It is not a weakly prime, because it can be changed into another prime (61233173693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30616586816 + 30616586817.

It is an arithmetic number, because the mean of its divisors is an integer number (30616586817).

Almost surely, 2^61233173633 is an apocalyptic number.

It is an amenable number.

61233173633 is a deficient number, since it is larger than the sum of its proper divisors (1).

61233173633 is an equidigital number, since it uses as much as digits as its factorization.

61233173633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 38.

The spelling of 61233173633 in words is "sixty-one billion, two hundred thirty-three million, one hundred seventy-three thousand, six hundred thirty-three".