774380801385 has 48 divisors (see below), whose sum is σ = 1400740833024. Its totient is φ = 395012128896.

The previous prime is 774380801371. The next prime is 774380801387. The reversal of 774380801385 is 583108083477.

774380801385 is a `hidden beast` number, since 77 + 43 + 80 + 80 + 1 + 385 = 666.

It is not a de Polignac number, because 774380801385 - 2¹⁴ = 774380785001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (774380801387) 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 47 ways as a sum of consecutive naturals, for example, 15455484 + ... + 15505506.

It is an arithmetic number, because the mean of its divisors is an integer number (29182100688).

Almost surely, 2^774380801385 is an apocalyptic number.

It is an amenable number.

774380801385 is a deficient number, since it is larger than the sum of its proper divisors (626360031639).

774380801385 is a wasteful number, since it uses less digits than its factorization.

774380801385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65014 (or 65011 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 774380801385 in words is "seven hundred seventy-four billion, three hundred eighty million, eight hundred one thousand, three hundred eighty-five".