7836646266 has 64 divisors (see below), whose sum is σ = 17703360000. Its totient is φ = 2569185216.

The previous prime is 7836646231. The next prime is 7836646277. The reversal of 7836646266 is 6626466387.

7836646266 is a `hidden beast` number, since 7 + 8 + 3 + 6 + 6 + 4 + 626 + 6 = 666.

It is a super-2 number, since 2×7836646266² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1144140 + ... + 1150968.

It is an arithmetic number, because the mean of its divisors is an integer number (276615000).

Almost surely, 2^7836646266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7836646266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8851680000).

7836646266 is an abundant number, since it is smaller than the sum of its proper divisors (9866713734).

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

7836646266 is a wasteful number, since it uses less digits than its factorization.

7836646266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188 (or 7182 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The square root of 7836646266 is about 88524.8341766309. The cubic root of 7836646266 is about 1986.2934689223.

The spelling of 7836646266 in words is "seven billion, eight hundred thirty-six million, six hundred forty-six thousand, two hundred sixty-six".