42771900719 has 4 divisors (see below), whose sum is σ = 42772723896. Its totient is φ = 42771077544.

The previous prime is 42771900713. The next prime is 42771900739. The reversal of 42771900719 is 91700917724.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42771900719 - 2²⁴ = 42755123503 is a prime.

It is a super-2 number, since 2×42771900719² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42771900713) 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, 327989 + ... + 439454.

It is an arithmetic number, because the mean of its divisors is an integer number (10693180974).

Almost surely, 2^42771900719 is an apocalyptic number.

42771900719 is a deficient number, since it is larger than the sum of its proper divisors (823177).

42771900719 is an equidigital number, since it uses as much as digits as its factorization.

42771900719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823176.

The product of its (nonzero) digits is 222264, while the sum is 47.

The spelling of 42771900719 in words is "forty-two billion, seven hundred seventy-one million, nine hundred thousand, seven hundred nineteen".