42719851 has 12 divisors (see below), whose sum is σ = 44363592. Its totient is φ = 41129888.

The previous prime is 42719849. The next prime is 42719881. The reversal of 42719851 is 15891724.

It is not a de Polignac number, because 42719851 - 2¹ = 42719849 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 42719851.

It is not an unprimeable number, because it can be changed into a prime (42719821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183231 + ... + 183463.

It is an arithmetic number, because the mean of its divisors is an integer number (3696966).

Almost surely, 2^42719851 is an apocalyptic number.

42719851 is a deficient number, since it is larger than the sum of its proper divisors (1643741).

42719851 is an equidigital number, since it uses as much as digits as its factorization.

42719851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 363 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The square root of 42719851 is about 6536.0424570224. The cubic root of 42719851 is about 349.5773155927.

The spelling of 42719851 in words is "forty-two million, seven hundred nineteen thousand, eight hundred fifty-one".