68977077986 has 16 divisors (see below), whose sum is σ = 103667951520. Its totient is φ = 34421137920.

The previous prime is 68977077979. The next prime is 68977077989.

68977077986 is nontrivially palindromic in base 10.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68977077989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3758645 + ... + 3776951.

It is an arithmetic number, because the mean of its divisors is an integer number (6479246970).

Almost surely, 2^68977077986 is an apocalyptic number.

68977077986 is a deficient number, since it is larger than the sum of its proper divisors (34690873534).

68977077986 is a wasteful number, since it uses less digits than its factorization.

68977077986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21889.

The product of its (nonzero) digits is 448084224, while the sum is 74.

The spelling of 68977077986 in words is "sixty-eight billion, nine hundred seventy-seven million, seventy-seven thousand, nine hundred eighty-six".