42819851371 has 16 divisors (see below), whose sum is σ = 49447157760. Its totient is φ = 36710745120.

The previous prime is 42819851369. The next prime is 42819851401. The reversal of 42819851371 is 17315891824.

It is a cyclic number.

It is not a de Polignac number, because 42819851371 - 2¹ = 42819851369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42819851351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1547115 + ... + 1574548.

It is an arithmetic number, because the mean of its divisors is an integer number (3090447360).

Almost surely, 2^42819851371 is an apocalyptic number.

42819851371 is a deficient number, since it is larger than the sum of its proper divisors (6627306389).

42819851371 is a wasteful number, since it uses less digits than its factorization.

42819851371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121746.

The product of its digits is 483840, while the sum is 49.

The spelling of 42819851371 in words is "forty-two billion, eight hundred nineteen million, eight hundred fifty-one thousand, three hundred seventy-one".