647047740746 has 32 divisors (see below), whose sum is σ = 1093118132736. Its totient is φ = 284584032000.

The previous prime is 647047740739. The next prime is 647047740791.

647047740746 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 647047740691 and 647047740700.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4928126 + ... + 5057718.

It is an arithmetic number, because the mean of its divisors is an integer number (34159941648).

Almost surely, 2^647047740746 is an apocalyptic number.

647047740746 is a deficient number, since it is larger than the sum of its proper divisors (446070391990).

647047740746 is a wasteful number, since it uses less digits than its factorization.

647047740746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136958.

The product of its (nonzero) digits is 22127616, while the sum is 56.

The spelling of 647047740746 in words is "six hundred forty-seven billion, forty-seven million, seven hundred forty thousand, seven hundred forty-six".