61533554324 has 12 divisors (see below), whose sum is σ = 117473149248. Its totient is φ = 27969797400.

The previous prime is 61533554311. The next prime is 61533554363. The reversal of 61533554324 is 42345533516.

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 3 ways as a sum of consecutive naturals, for example, 699244892 + ... + 699244979.

It is an arithmetic number, because the mean of its divisors is an integer number (9789429104).

Almost surely, 2^61533554324 is an apocalyptic number.

It is an amenable number.

61533554324 is a deficient number, since it is larger than the sum of its proper divisors (55939594924).

61533554324 is a wasteful number, since it uses less digits than its factorization.

61533554324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398489886 (or 1398489884 counting only the distinct ones).

The product of its digits is 648000, while the sum is 41.

The spelling of 61533554324 in words is "sixty-one billion, five hundred thirty-three million, five hundred fifty-four thousand, three hundred twenty-four".