647070211842 has 16 divisors (see below), whose sum is σ = 1294245166080. Its totient is φ = 215672613552.

The previous prime is 647070211763. The next prime is 647070211847. The reversal of 647070211842 is 248112070746.

It is a junction number, because it is equal to n+sod(n) for n = 647070211794 and 647070211803.

It is not an unprimeable number, because it can be changed into a prime (647070211847) 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 7 ways as a sum of consecutive naturals, for example, 4283842 + ... + 4432317.

It is an arithmetic number, because the mean of its divisors is an integer number (80890322880).

Almost surely, 2^647070211842 is an apocalyptic number.

647070211842 is an abundant number, since it is smaller than the sum of its proper divisors (647174954238).

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

647070211842 is a wasteful number, since it uses less digits than its factorization.

647070211842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728537.

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 647070211842 in words is "six hundred forty-seven billion, seventy million, two hundred eleven thousand, eight hundred forty-two".