6642487950 has 48 divisors (see below), whose sum is σ = 18826711680. Its totient is φ = 1518282720.

The previous prime is 6642487879. The next prime is 6642487963. The reversal of 6642487950 is 597842466.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6642487893 and 6642487902.

It is a congruent number.

It is an unprimeable number.

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, 3162040 + ... + 3164139.

It is an arithmetic number, because the mean of its divisors is an integer number (392223160).

Almost surely, 2^6642487950 is an apocalyptic number.

6642487950 is an abundant number, since it is smaller than the sum of its proper divisors (12184223730).

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

6642487950 is a wasteful number, since it uses less digits than its factorization.

6642487950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6326201 (or 6326196 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The square root of 6642487950 is about 81501.4598028772. The cubic root of 6642487950 is about 1879.7939971578.

The spelling of 6642487950 in words is "six billion, six hundred forty-two million, four hundred eighty-seven thousand, nine hundred fifty".