651049863323 has 4 divisors (see below), whose sum is σ = 673499858640. Its totient is φ = 628599868008.

The previous prime is 651049863307. The next prime is 651049863329. The reversal of 651049863323 is 323368940156.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 651049863323 - 2⁴ = 651049863307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651049863329) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11224997615 + ... + 11224997672.

It is an arithmetic number, because the mean of its divisors is an integer number (168374964660).

Almost surely, 2^651049863323 is an apocalyptic number.

651049863323 is a deficient number, since it is larger than the sum of its proper divisors (22449995317).

651049863323 is a wasteful number, since it uses less digits than its factorization.

651049863323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22449995316.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 651049863323 in words is "six hundred fifty-one billion, forty-nine million, eight hundred sixty-three thousand, three hundred twenty-three".