42771315252 has 48 divisors (see below), whose sum is σ = 100049931072. Its totient is φ = 14221413120.

The previous prime is 42771315239. The next prime is 42771315253. The reversal of 42771315252 is 25251317724.

It is a self number, because there is not a number n which added to its sum of digits gives 42771315252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42771315253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9594208 + ... + 9598664.

It is an arithmetic number, because the mean of its divisors is an integer number (2084373564).

Almost surely, 2^42771315252 is an apocalyptic number.

It is an amenable number.

42771315252 is an abundant number, since it is smaller than the sum of its proper divisors (57278615820).

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

42771315252 is a wasteful number, since it uses less digits than its factorization.

42771315252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288 (or 6286 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The spelling of 42771315252 in words is "forty-two billion, seven hundred seventy-one million, three hundred fifteen thousand, two hundred fifty-two".