6444621150126 has 16 divisors (see below), whose sum is σ = 12891247860864. Its totient is φ = 2147872789944.

The previous prime is 6444621150119. The next prime is 6444621150193. The reversal of 6444621150126 is 6210511264446.

It is a happy number.

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, 83523250 + ... + 83600373.

It is an arithmetic number, because the mean of its divisors is an integer number (805702991304).

Almost surely, 2^{6444621150126} is an apocalyptic number.

6444621150126 is an abundant number, since it is smaller than the sum of its proper divisors (6446626710738).

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

6444621150126 is a wasteful number, since it uses less digits than its factorization.

6444621150126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167130055.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 6444621150126 in words is "six trillion, four hundred forty-four billion, six hundred twenty-one million, one hundred fifty thousand, one hundred twenty-six".