61243574833 has 4 divisors (see below), whose sum is σ = 69992656960. Its totient is φ = 52494492708.

The previous prime is 61243574773. The next prime is 61243574837. The reversal of 61243574833 is 33847534216.

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 61243574833 - 2²⁹ = 60706703921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61243574837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4374541053 + ... + 4374541066.

It is an arithmetic number, because the mean of its divisors is an integer number (17498164240).

Almost surely, 2^61243574833 is an apocalyptic number.

It is an amenable number.

61243574833 is a deficient number, since it is larger than the sum of its proper divisors (8749082127).

61243574833 is an equidigital number, since it uses as much as digits as its factorization.

61243574833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8749082126.

The product of its digits is 1451520, while the sum is 46.

The spelling of 61243574833 in words is "sixty-one billion, two hundred forty-three million, five hundred seventy-four thousand, eight hundred thirty-three".