647760013436 has 6 divisors (see below), whose sum is σ = 1133580023520. Its totient is φ = 323880006716.

The previous prime is 647760013427. The next prime is 647760013447. The reversal of 647760013436 is 634310067746.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80970001676 + ... + 80970001683.

It is an arithmetic number, because the mean of its divisors is an integer number (188930003920).

Almost surely, 2^647760013436 is an apocalyptic number.

It is an amenable number.

647760013436 is a deficient number, since it is larger than the sum of its proper divisors (485820010084).

647760013436 is a wasteful number, since it uses less digits than its factorization.

647760013436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161940003363 (or 161940003361 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 47.

The spelling of 647760013436 in words is "six hundred forty-seven billion, seven hundred sixty million, thirteen thousand, four hundred thirty-six".