61143046033 has 4 divisors (see below), whose sum is σ = 61228085760. Its totient is φ = 61058006308.

The previous prime is 61143045983. The next prime is 61143046109. The reversal of 61143046033 is 33064034116.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61143046033 - 2²¹ = 61140948881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61143045986 and 61143046004.

It is not an unprimeable number, because it can be changed into a prime (61143040033) 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, 42518785 + ... + 42520222.

It is an arithmetic number, because the mean of its divisors is an integer number (15307021440).

Almost surely, 2^61143046033 is an apocalyptic number.

It is an amenable number.

61143046033 is a deficient number, since it is larger than the sum of its proper divisors (85039727).

61143046033 is an equidigital number, since it uses as much as digits as its factorization.

61143046033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85039726.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 61143046033 in words is "sixty-one billion, one hundred forty-three million, forty-six thousand, thirty-three".