824420673838 has 16 divisors (see below), whose sum is σ = 1239838853760. Its totient is φ = 411142074336.

The previous prime is 824420673707. The next prime is 824420673913. The reversal of 824420673838 is 838376024428.

It is a congruent number.

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, 1372195 + ... + 1879297.

It is an arithmetic number, because the mean of its divisors is an integer number (77489928360).

Almost surely, 2^824420673838 is an apocalyptic number.

824420673838 is a deficient number, since it is larger than the sum of its proper divisors (415418179922).

824420673838 is a wasteful number, since it uses less digits than its factorization.

824420673838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509211.

The product of its (nonzero) digits is 12386304, while the sum is 55.

The spelling of 824420673838 in words is "eight hundred twenty-four billion, four hundred twenty million, six hundred seventy-three thousand, eight hundred thirty-eight".