651684912913 has 16 divisors (see below), whose sum is σ = 668194312192. Its totient is φ = 635238450000.

The previous prime is 651684912911. The next prime is 651684912937. The reversal of 651684912913 is 319219486156.

It is a cyclic number.

It is not a de Polignac number, because 651684912913 - 2¹ = 651684912911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651684912911) 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 15 ways as a sum of consecutive naturals, for example, 44778988 + ... + 44793538.

It is an arithmetic number, because the mean of its divisors is an integer number (41762144512).

Almost surely, 2^651684912913 is an apocalyptic number.

It is an amenable number.

651684912913 is a deficient number, since it is larger than the sum of its proper divisors (16509399279).

651684912913 is a wasteful number, since it uses less digits than its factorization.

651684912913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16636.

The product of its digits is 2799360, while the sum is 55.

The spelling of 651684912913 in words is "six hundred fifty-one billion, six hundred eighty-four million, nine hundred twelve thousand, nine hundred thirteen".