977966222669779 has 8 divisors (see below), whose sum is σ = 1131823476508160. Its totient is φ = 827645917195656.

The previous prime is 977966222669773. The next prime is 977966222669789.

977966222669779 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 977966222669779 - 2¹⁵ = 977966222637011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (977966222669773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884237090469 + ... + 884237091574.

It is an arithmetic number, because the mean of its divisors is an integer number (141477934563520).

Almost surely, 2^{977966222669779} is an apocalyptic number.

977966222669779 is a deficient number, since it is larger than the sum of its proper divisors (153857253838381).

977966222669779 is a wasteful number, since it uses less digits than its factorization.

977966222669779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768474182129.

The product of its digits is 163326699648, while the sum is 94.

The spelling of 977966222669779 in words is "nine hundred seventy-seven trillion, nine hundred sixty-six billion, two hundred twenty-two million, six hundred sixty-nine thousand, seven hundred seventy-nine".