6419521950 has 48 divisors (see below), whose sum is σ = 16612615296. Its totient is φ = 1637442400.

The previous prime is 6419521937. The next prime is 6419521951. The reversal of 6419521950 is 591259146.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6419521951) 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 23 ways as a sum of consecutive naturals, for example, 926916 + ... + 933815.

It is an arithmetic number, because the mean of its divisors is an integer number (346096152).

Almost surely, 2^6419521950 is an apocalyptic number.

6419521950 is an abundant number, since it is smaller than the sum of its proper divisors (10193093346).

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

6419521950 is a wasteful number, since it uses less digits than its factorization.

6419521950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860769 (or 1860764 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 6419521950 is about 80121.9192855488. The cubic root of 6419521950 is about 1858.5213852922.

The spelling of 6419521950 in words is "six billion, four hundred nineteen million, five hundred twenty-one thousand, nine hundred fifty".