67205678650 has 24 divisors (see below), whose sum is σ = 136366432704. Its totient is φ = 24438428400.

The previous prime is 67205678581. The next prime is 67205678653. The reversal of 67205678650 is 5687650276.

It is not an unprimeable number, because it can be changed into a prime (67205678653) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 61095522 + ... + 61096621.

It is an arithmetic number, because the mean of its divisors is an integer number (5681934696).

Almost surely, 2^67205678650 is an apocalyptic number.

67205678650 is an abundant number, since it is smaller than the sum of its proper divisors (69160754054).

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

67205678650 is a wasteful number, since it uses less digits than its factorization.

67205678650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122192166 (or 122192161 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 67205678650 in words is "sixty-seven billion, two hundred five million, six hundred seventy-eight thousand, six hundred fifty".