42905206995 has 16 divisors (see below), whose sum is σ = 78455235840. Its totient is φ = 19613808864.

The previous prime is 42905206957. The next prime is 42905206999. The reversal of 42905206995 is 59960250924.

It is not a de Polignac number, because 42905206995 - 2⁹ = 42905206483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42905206999) 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 15 ways as a sum of consecutive naturals, for example, 204310405 + ... + 204310614.

It is an arithmetic number, because the mean of its divisors is an integer number (4903452240).

Almost surely, 2^42905206995 is an apocalyptic number.

42905206995 is a deficient number, since it is larger than the sum of its proper divisors (35550028845).

42905206995 is a wasteful number, since it uses less digits than its factorization.

42905206995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408621034.

The product of its (nonzero) digits is 1749600, while the sum is 51.

The spelling of 42905206995 in words is "forty-two billion, nine hundred five million, two hundred six thousand, nine hundred ninety-five".