61354968624 has 60 divisors (see below), whose sum is σ = 171726095632. Its totient is φ = 20449584000.

The previous prime is 61354968581. The next prime is 61354968641. The reversal of 61354968624 is 42686945316.

61354968624 is a `hidden beast` number, since 6 + 1 + 3 + 5 + 4 + 9 + 6 + 8 + 624 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2185074 + ... + 2212974.

Almost surely, 2^61354968624 is an apocalyptic number.

It is an amenable number.

61354968624 is an abundant number, since it is smaller than the sum of its proper divisors (110371127008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61354968624 is a wasteful number, since it uses less digits than its factorization.

61354968624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43186 (or 43177 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 61354968624 in words is "sixty-one billion, three hundred fifty-four million, nine hundred sixty-eight thousand, six hundred twenty-four".