621203796508 has 12 divisors (see below), whose sum is σ = 1092624953112. Its totient is φ = 309025238480.

The previous prime is 621203796487. The next prime is 621203796511. The reversal of 621203796508 is 805697302126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394164058 + ... + 394165633.

It is an arithmetic number, because the mean of its divisors is an integer number (91052079426).

Almost surely, 2^621203796508 is an apocalyptic number.

It is an amenable number.

621203796508 is a deficient number, since it is larger than the sum of its proper divisors (471421156604).

621203796508 is a wasteful number, since it uses less digits than its factorization.

621203796508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788329892 (or 788329890 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 621203796508 in words is "six hundred twenty-one billion, two hundred three million, seven hundred ninety-six thousand, five hundred eight".