67581761420 has 24 divisors (see below), whose sum is σ = 146499819648. Its totient is φ = 26160681600.

The previous prime is 67581761417. The next prime is 67581761437. The reversal of 67581761420 is 2416718576.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54500801 + ... + 54502040.

It is an arithmetic number, because the mean of its divisors is an integer number (6104159152).

Almost surely, 2^67581761420 is an apocalyptic number.

It is an amenable number.

67581761420 is an abundant number, since it is smaller than the sum of its proper divisors (78918058228).

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

67581761420 is a wasteful number, since it uses less digits than its factorization.

67581761420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109002881 (or 109002879 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 67581761420 in words is "sixty-seven billion, five hundred eighty-one million, seven hundred sixty-one thousand, four hundred twenty".