651609645347 has 8 divisors (see below), whose sum is σ = 661470889440. Its totient is φ = 641815257600.

The previous prime is 651609645331. The next prime is 651609645371. The reversal of 651609645347 is 743546906156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 651609645347 - 2⁴ = 651609645331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 651609645292 and 651609645301.

It is not an unprimeable number, because it can be changed into a prime (651609645317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16694447 + ... + 16733432.

It is an arithmetic number, because the mean of its divisors is an integer number (82683861180).

Almost surely, 2^651609645347 is an apocalyptic number.

651609645347 is a deficient number, since it is larger than the sum of its proper divisors (9861244093).

651609645347 is a wasteful number, since it uses less digits than its factorization.

651609645347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33428173.

The product of its (nonzero) digits is 16329600, while the sum is 56.

The spelling of 651609645347 in words is "six hundred fifty-one billion, six hundred nine million, six hundred forty-five thousand, three hundred forty-seven".