7812282268066 has 8 divisors (see below), whose sum is σ = 11718615951900. Its totient is φ = 3906076950768.

The previous prime is 7812282268019. The next prime is 7812282268081. The reversal of 7812282268066 is 6608622822187.

It can be written as a sum of positive squares in 2 ways, for example, as 7214977417041 + 597304851025 = 2686071^2 + 772855^2 .

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

It is a super-2 number, since 2×7812282268066² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7812282268066.

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, 31939341 + ... + 32183008.

Almost surely, 2^{7812282268066} is an apocalyptic number.

7812282268066 is a deficient number, since it is larger than the sum of its proper divisors (3906333683834).

7812282268066 is a wasteful number, since it uses less digits than its factorization.

7812282268066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64183268.

The product of its (nonzero) digits is 12386304, while the sum is 58.

The spelling of 7812282268066 in words is "seven trillion, eight hundred twelve billion, two hundred eighty-two million, two hundred sixty-eight thousand, sixty-six".