61043787843 has 8 divisors (see below), whose sum is σ = 81484106256. Its totient is φ = 40649664000.

The previous prime is 61043787823. The next prime is 61043787863. The reversal of 61043787843 is 34878734016.

It is a happy number.

61043787843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61043787823) and next prime (61043787863).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61043787843 - 2⁹ = 61043787331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61043787823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11545558 + ... + 11550843.

It is an arithmetic number, because the mean of its divisors is an integer number (10185513282).

Almost surely, 2^61043787843 is an apocalyptic number.

61043787843 is a deficient number, since it is larger than the sum of its proper divisors (20440318413).

61043787843 is a wasteful number, since it uses less digits than its factorization.

61043787843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23097285.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 61043787843 in words is "sixty-one billion, forty-three million, seven hundred eighty-seven thousand, eight hundred forty-three".