68971281670 has 16 divisors (see below), whose sum is σ = 124204700880. Its totient is φ = 27575980704.

The previous prime is 68971281667. The next prime is 68971281719. The reversal of 68971281670 is 7618217986.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1543365 + ... + 1587424.

It is an arithmetic number, because the mean of its divisors is an integer number (7762793805).

Almost surely, 2^68971281670 is an apocalyptic number.

68971281670 is a deficient number, since it is larger than the sum of its proper divisors (55233419210).

68971281670 is a wasteful number, since it uses less digits than its factorization.

68971281670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132999.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 68971281670 in words is "sixty-eight billion, nine hundred seventy-one million, two hundred eighty-one thousand, six hundred seventy".