61235123633 has 4 divisors (see below), whose sum is σ = 61923158820. Its totient is φ = 60547088448.

The previous prime is 61235123603. The next prime is 61235123657. The reversal of 61235123633 is 33632153216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7630371904 + 53604751729 = 87352^2 + 231527^2 .

It is a cyclic number.

It is not a de Polignac number, because 61235123633 - 2¹² = 61235119537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61235123593 and 61235123602.

It is not an unprimeable number, because it can be changed into a prime (61235123603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344017460 + ... + 344017637.

It is an arithmetic number, because the mean of its divisors is an integer number (15480789705).

Almost surely, 2^61235123633 is an apocalyptic number.

It is an amenable number.

61235123633 is a deficient number, since it is larger than the sum of its proper divisors (688035187).

61235123633 is an equidigital number, since it uses as much as digits as its factorization.

61235123633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688035186.

The product of its digits is 58320, while the sum is 35.

Adding to 61235123633 its reverse (33632153216), we get a palindrome (94867276849).

The spelling of 61235123633 in words is "sixty-one billion, two hundred thirty-five million, one hundred twenty-three thousand, six hundred thirty-three".