647361420467 has 4 divisors (see below), whose sum is σ = 647403496896. Its totient is φ = 647319344040.

The previous prime is 647361420427. The next prime is 647361420473. The reversal of 647361420467 is 764024163746.

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 647361420467 - 2¹⁶ = 647361354931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647361420427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21015128 + ... + 21045909.

It is an arithmetic number, because the mean of its divisors is an integer number (161850874224).

Almost surely, 2^647361420467 is an apocalyptic number.

647361420467 is a deficient number, since it is larger than the sum of its proper divisors (42076429).

647361420467 is a wasteful number, since it uses less digits than its factorization.

647361420467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42076428.

The product of its (nonzero) digits is 4064256, while the sum is 50.

The spelling of 647361420467 in words is "six hundred forty-seven billion, three hundred sixty-one million, four hundred twenty thousand, four hundred sixty-seven".