42771013940 has 24 divisors (see below), whose sum is σ = 89848392480. Its totient is φ = 17102831648.

The previous prime is 42771013933. The next prime is 42771013951. The reversal of 42771013940 is 4931017724.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42771013894 and 42771013903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285170 + ... + 408489.

It is an arithmetic number, because the mean of its divisors is an integer number (3743683020).

Almost surely, 2^42771013940 is an apocalyptic number.

It is an amenable number.

42771013940 is an abundant number, since it is smaller than the sum of its proper divisors (47077378540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42771013940 is a wasteful number, since it uses less digits than its factorization.

42771013940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696751 (or 696749 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 42771013940 in words is "forty-two billion, seven hundred seventy-one million, thirteen thousand, nine hundred forty".