9780366974677 has 12 divisors (see below), whose sum is σ = 10595185379940. Its totient is φ = 9027895743360.

The previous prime is 9780366974563. The next prime is 9780366974713. The reversal of 9780366974677 is 7764796630879.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 7192045876401 + 2588321098276 = 2681799^2 + 1608826^2 .

It is not a de Polignac number, because 9780366974677 - 2¹⁵ = 9780366941909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9780366974597 and 9780366974606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9780366914677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146552677 + ... + 146619397.

It is an arithmetic number, because the mean of its divisors is an integer number (882932114995).

Almost surely, 2^{9780366974677} is an apocalyptic number.

It is an amenable number.

9780366974677 is a deficient number, since it is larger than the sum of its proper divisors (814818405263).

9780366974677 is an frugal number, since it uses more digits than its factorization.

9780366974677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133481 (or 66734 counting only the distinct ones).

The product of its (nonzero) digits is 4032758016, while the sum is 79.

The spelling of 9780366974677 in words is "nine trillion, seven hundred eighty billion, three hundred sixty-six million, nine hundred seventy-four thousand, six hundred seventy-seven".