670419046821 has 4 divisors (see below), whose sum is σ = 893892062432. Its totient is φ = 446946031212.

The previous prime is 670419046819. The next prime is 670419046849. The reversal of 670419046821 is 128640914076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 670419046821 - 2¹ = 670419046819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670419046421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111736507801 + ... + 111736507806.

It is an arithmetic number, because the mean of its divisors is an integer number (223473015608).

Almost surely, 2^670419046821 is an apocalyptic number.

It is an amenable number.

670419046821 is a deficient number, since it is larger than the sum of its proper divisors (223473015611).

670419046821 is a wasteful number, since it uses less digits than its factorization.

670419046821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223473015610.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 670419046821 in words is "six hundred seventy billion, four hundred nineteen million, forty-six thousand, eight hundred twenty-one".