68156342782 has 16 divisors (see below), whose sum is σ = 111589011072. Its totient is φ = 30963364120.

The previous prime is 68156342777. The next prime is 68156342797. The reversal of 68156342782 is 28724365186.

It is a super-2 number, since 2×68156342782² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798028 + ... + 879295.

It is an arithmetic number, because the mean of its divisors is an integer number (6974313192).

Almost surely, 2^68156342782 is an apocalyptic number.

68156342782 is a deficient number, since it is larger than the sum of its proper divisors (43432668290).

68156342782 is a wasteful number, since it uses less digits than its factorization.

68156342782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679183.

The product of its digits is 3870720, while the sum is 52.

The spelling of 68156342782 in words is "sixty-eight billion, one hundred fifty-six million, three hundred forty-two thousand, seven hundred eighty-two".