6642093854 has 8 divisors (see below), whose sum is σ = 10868880888. Its totient is φ = 3019133560.

The previous prime is 6642093797. The next prime is 6642093859. The reversal of 6642093854 is 4583902466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6642093799 and 6642093808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642093859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150956657 + ... + 150956700.

It is an arithmetic number, because the mean of its divisors is an integer number (1358610111).

Almost surely, 2^6642093854 is an apocalyptic number.

6642093854 is a deficient number, since it is larger than the sum of its proper divisors (4226787034).

6642093854 is a wasteful number, since it uses less digits than its factorization.

6642093854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301913370.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The square root of 6642093854 is about 81499.0420434498. The cubic root of 6642093854 is about 1879.7568206283.

The spelling of 6642093854 in words is "six billion, six hundred forty-two million, ninety-three thousand, eight hundred fifty-four".