6421229100650 has 768 divisors, whose sum is σ = 16543191168000. Its totient is φ = 1835499294720.

The previous prime is 6421229100641. The next prime is 6421229100661. The reversal of 6421229100650 is 560019221246.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 8306893664 + ... + 8306894436.

It is an arithmetic number, because the mean of its divisors is an integer number (21540613500).

Almost surely, 2^{6421229100650} is an apocalyptic number.

6421229100650 is an abundant number, since it is smaller than the sum of its proper divisors (10121962067350).

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

6421229100650 is a wasteful number, since it uses less digits than its factorization.

6421229100650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 909 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 6421229100650 in words is "six trillion, four hundred twenty-one billion, two hundred twenty-nine million, one hundred thousand, six hundred fifty".