1385677774477 has 8 divisors (see below), whose sum is σ = 1460380506560. Its totient is φ = 1311152274720.

The previous prime is 1385677774471. The next prime is 1385677774493. The reversal of 1385677774477 is 7744777765831.

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 1385677774477 - 2¹⁹ = 1385677250189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385677774471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44292024 + ... + 44323297.

It is an arithmetic number, because the mean of its divisors is an integer number (182547563320).

Almost surely, 2^{1385677774477} is an apocalyptic number.

It is an amenable number.

1385677774477 is a deficient number, since it is larger than the sum of its proper divisors (74702732083).

1385677774477 is an equidigital number, since it uses as much as digits as its factorization.

1385677774477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88616163.

The product of its digits is 1355316480, while the sum is 73.

The spelling of 1385677774477 in words is "one trillion, three hundred eighty-five billion, six hundred seventy-seven million, seven hundred seventy-four thousand, four hundred seventy-seven".