747871464868 has 36 divisors (see below), whose sum is σ = 1465713835740. Its totient is φ = 333527571520.

The previous prime is 747871464733. The next prime is 747871464911. The reversal of 747871464868 is 868464178747.

It can be written as a sum of positive squares in 2 ways, for example, as 390815023104 + 357056441764 = 625152^2 + 597542^2 .

It is a junction number, because it is equal to n+sod(n) for n = 747871464797 and 747871464806.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 14551603 + ... + 14602906.

It is an arithmetic number, because the mean of its divisors is an integer number (40714273215).

Almost surely, 2^747871464868 is an apocalyptic number.

It is an amenable number.

747871464868 is a deficient number, since it is larger than the sum of its proper divisors (717842370872).

747871464868 is a wasteful number, since it uses less digits than its factorization.

747871464868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29154588 (or 29154575 counting only the distinct ones).

The product of its digits is 404619264, while the sum is 70.

The spelling of 747871464868 in words is "seven hundred forty-seven billion, eight hundred seventy-one million, four hundred sixty-four thousand, eight hundred sixty-eight".