647102621346 has 16 divisors (see below), whose sum is σ = 1294393737600. Its totient is φ = 215669457968.

The previous prime is 647102621327. The next prime is 647102621351. The reversal of 647102621346 is 643126201746.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 647102621298 and 647102621307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7809306 + ... + 7891733.

It is an arithmetic number, because the mean of its divisors is an integer number (80899608600).

Almost surely, 2^647102621346 is an apocalyptic number.

647102621346 is an abundant number, since it is smaller than the sum of its proper divisors (647291116254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

647102621346 is a wasteful number, since it uses less digits than its factorization.

647102621346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15707913.

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 647102621346 in words is "six hundred forty-seven billion, one hundred two million, six hundred twenty-one thousand, three hundred forty-six".