61443230535 has 16 divisors (see below), whose sum is σ = 109232410080. Its totient is φ = 32769722880.

The previous prime is 61443230501. The next prime is 61443230591. The reversal of 61443230535 is 53503234416.

61443230535 is a `hidden beast` number, since 61 + 4 + 4 + 32 + 30 + 535 = 666.

It is not a de Polignac number, because 61443230535 - 2¹⁰ = 61443229511 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61443230535.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227567386 + ... + 227567655.

It is an arithmetic number, because the mean of its divisors is an integer number (6827025630).

Almost surely, 2^61443230535 is an apocalyptic number.

61443230535 is a deficient number, since it is larger than the sum of its proper divisors (47789179545).

61443230535 is a wasteful number, since it uses less digits than its factorization.

61443230535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455135055 (or 455135049 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 61443230535 in words is "sixty-one billion, four hundred forty-three million, two hundred thirty thousand, five hundred thirty-five".