647531135746 has 32 divisors (see below), whose sum is σ = 1088097126336. Its totient is φ = 286464192000.

The previous prime is 647531135707. The next prime is 647531135773.

647531135746 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 647531135693 and 647531135702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 952135 + ... + 1483786.

It is an arithmetic number, because the mean of its divisors is an integer number (34003035198).

Almost surely, 2^647531135746 is an apocalyptic number.

647531135746 is a deficient number, since it is larger than the sum of its proper divisors (440565990590).

647531135746 is a wasteful number, since it uses less digits than its factorization.

647531135746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436258.

The product of its digits is 6350400, while the sum is 52.

The spelling of 647531135746 in words is "six hundred forty-seven billion, five hundred thirty-one million, one hundred thirty-five thousand, seven hundred forty-six".