42743809516 has 12 divisors (see below), whose sum is σ = 76213019232. Its totient is φ = 20968661168.

The previous prime is 42743809457. The next prime is 42743809541. The reversal of 42743809516 is 61590834724.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42743809516.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100810660 + ... + 100811083.

It is an arithmetic number, because the mean of its divisors is an integer number (6351084936).

It is a 2-persistent number, because it is pandigital, and so is 2⋅42743809516 = 85487619032, but 3⋅42743809516 = 128231428548 is not.

Almost surely, 2^42743809516 is an apocalyptic number.

42743809516 is the 130758-th centered pentagonal number.

It is an amenable number.

42743809516 is a deficient number, since it is larger than the sum of its proper divisors (33469209716).

42743809516 is a wasteful number, since it uses less digits than its factorization.

42743809516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201621800 (or 201621798 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 42743809516 in words is "forty-two billion, seven hundred forty-three million, eight hundred nine thousand, five hundred sixteen".