747783387747 has 48 divisors (see below), whose sum is σ = 1210484321280. Its totient is φ = 440839540800.

The previous prime is 747783387727. The next prime is 747783387811.

747783387747 is a `hidden beast` number, since 7 + 477 + 8 + 3 + 3 + 87 + 74 + 7 = 666.

747783387747 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 747783387747 - 2¹⁹ = 747782863459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (747783387707) 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 47 ways as a sum of consecutive naturals, for example, 15400654 + ... + 15449132.

It is an arithmetic number, because the mean of its divisors is an integer number (25218423360).

Almost surely, 2^747783387747 is an apocalyptic number.

747783387747 is a deficient number, since it is larger than the sum of its proper divisors (462700933533).

747783387747 is a wasteful number, since it uses less digits than its factorization.

747783387747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52744 (or 52741 counting only the distinct ones).

The product of its digits is 1084253184, while the sum is 72.

The spelling of 747783387747 in words is "seven hundred forty-seven billion, seven hundred eighty-three million, three hundred eighty-seven thousand, seven hundred forty-seven".