68928892547 has 16 divisors (see below), whose sum is σ = 70899459072. Its totient is φ = 66990939840.

The previous prime is 68928892523. The next prime is 68928892561. The reversal of 68928892547 is 74529882986.

It is not a de Polignac number, because 68928892547 - 2²⁸ = 68660457091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68928891547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1851743 + ... + 1888599.

It is an arithmetic number, because the mean of its divisors is an integer number (4431216192).

Almost surely, 2^68928892547 is an apocalyptic number.

68928892547 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

68928892547 is a deficient number, since it is larger than the sum of its proper divisors (1970566525).

68928892547 is a wasteful number, since it uses less digits than its factorization.

68928892547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37298.

The product of its digits is 139345920, while the sum is 68.

The spelling of 68928892547 in words is "sixty-eight billion, nine hundred twenty-eight million, eight hundred ninety-two thousand, five hundred forty-seven".