42777240266 has 8 divisors (see below), whose sum is σ = 64978086720. Its totient is φ = 21117878028.

The previous prime is 42777240241. The next prime is 42777240283. The reversal of 42777240266 is 66204277724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42777240266.

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, 135370856 + ... + 135371171.

It is an arithmetic number, because the mean of its divisors is an integer number (8122260840).

Almost surely, 2^42777240266 is an apocalyptic number.

42777240266 is a deficient number, since it is larger than the sum of its proper divisors (22200846454).

42777240266 is a wasteful number, since it uses less digits than its factorization.

42777240266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270742108.

The product of its (nonzero) digits is 1580544, while the sum is 47.

The spelling of 42777240266 in words is "forty-two billion, seven hundred seventy-seven million, two hundred forty thousand, two hundred sixty-six".