61443433205 has 64 divisors (see below), whose sum is σ = 92642711040. Its totient is φ = 38004940800.

The previous prime is 61443433153. The next prime is 61443433211. The reversal of 61443433205 is 50233434416.

61443433205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61443433205 - 2⁸ = 61443432949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29411801 + ... + 29413889.

It is an arithmetic number, because the mean of its divisors is an integer number (1447542360).

Almost surely, 2^61443433205 is an apocalyptic number.

It is an amenable number.

61443433205 is a deficient number, since it is larger than the sum of its proper divisors (31199277835).

61443433205 is a wasteful number, since it uses less digits than its factorization.

61443433205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670.

The product of its (nonzero) digits is 103680, while the sum is 35.

The spelling of 61443433205 in words is "sixty-one billion, four hundred forty-three million, four hundred thirty-three thousand, two hundred five".