42719503849 has 4 divisors (see below), whose sum is σ = 46603095120. Its totient is φ = 38835912580.

The previous prime is 42719503837. The next prime is 42719503867. The reversal of 42719503849 is 94830591724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42719503849 - 2⁵ = 42719503817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42719503796 and 42719503805.

It is not an unprimeable number, because it can be changed into a prime (42719503649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1941795619 + ... + 1941795640.

It is an arithmetic number, because the mean of its divisors is an integer number (11650773780).

Almost surely, 2^42719503849 is an apocalyptic number.

It is an amenable number.

42719503849 is a deficient number, since it is larger than the sum of its proper divisors (3883591271).

42719503849 is a wasteful number, since it uses less digits than its factorization.

42719503849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883591270.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 42719503849 in words is "forty-two billion, seven hundred nineteen million, five hundred three thousand, eight hundred forty-nine".