42910779439 has 8 divisors (see below), whose sum is σ = 46841575680. Its totient is φ = 38984952600.

The previous prime is 42910779433. The next prime is 42910779451. The reversal of 42910779439 is 93497701924.

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

It is not a de Polignac number, because 42910779439 - 2¹⁹ = 42910255151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42910779439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42910779433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1224279 + ... + 1258840.

It is an arithmetic number, because the mean of its divisors is an integer number (5855196960).

Almost surely, 2^42910779439 is an apocalyptic number.

42910779439 is a deficient number, since it is larger than the sum of its proper divisors (3930796241).

42910779439 is a wasteful number, since it uses less digits than its factorization.

42910779439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484701.

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 42910779439 in words is "forty-two billion, nine hundred ten million, seven hundred seventy-nine thousand, four hundred thirty-nine".