61142354743 has 2 divisors, whose sum is σ = 61142354744. Its totient is φ = 61142354742.

The previous prime is 61142354737. The next prime is 61142354747. The reversal of 61142354743 is 34745324116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61142354743 - 2¹⁷ = 61142223671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61142354696 and 61142354705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61142354747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30571177371 + 30571177372.

It is an arithmetic number, because the mean of its divisors is an integer number (30571177372).

Almost surely, 2^61142354743 is an apocalyptic number.

61142354743 is a deficient number, since it is larger than the sum of its proper divisors (1).

61142354743 is an equidigital number, since it uses as much as digits as its factorization.

61142354743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

Adding to 61142354743 its reverse (34745324116), we get a palindrome (95887678859).

The spelling of 61142354743 in words is "sixty-one billion, one hundred forty-two million, three hundred fifty-four thousand, seven hundred forty-three".