61893559043 has 4 divisors (see below), whose sum is σ = 62441289768. Its totient is φ = 61345828320.

The previous prime is 61893559031. The next prime is 61893559097. The reversal of 61893559043 is 34095539816.

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

It is a cyclic number.

It is not a de Polignac number, because 61893559043 - 2⁸ = 61893558787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61893559643) 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, 273865193 + ... + 273865418.

It is an arithmetic number, because the mean of its divisors is an integer number (15610322442).

Almost surely, 2^61893559043 is an apocalyptic number.

61893559043 is a deficient number, since it is larger than the sum of its proper divisors (547730725).

61893559043 is a wasteful number, since it uses less digits than its factorization.

61893559043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547730724.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 61893559043 in words is "sixty-one billion, eight hundred ninety-three million, five hundred fifty-nine thousand, forty-three".