641923295 has 16 divisors (see below), whose sum is σ = 837625152. Its totient is φ = 469428480.

The previous prime is 641923279. The next prime is 641923301. The reversal of 641923295 is 592329146.

It is not a de Polignac number, because 641923295 - 2⁴ = 641923279 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 41246 + ... + 54635.

It is an arithmetic number, because the mean of its divisors is an integer number (52351572).

Almost surely, 2^641923295 is an apocalyptic number.

641923295 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

641923295 is a deficient number, since it is larger than the sum of its proper divisors (195701857).

641923295 is a wasteful number, since it uses less digits than its factorization.

641923295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96002.

The product of its digits is 116640, while the sum is 41.

The square root of 641923295 is about 25336.2052209876. The cubic root of 641923295 is about 862.6362655250.

The spelling of 641923295 in words is "six hundred forty-one million, nine hundred twenty-three thousand, two hundred ninety-five".