8378611011 has 12 divisors (see below), whose sum is σ = 12120811560. Its totient is φ = 5577260640.

The previous prime is 8378610979. The next prime is 8378611091. The reversal of 8378611011 is 1101168738.

It is a happy number.

8378611011 is a `hidden beast` number, since 8 + 37 + 8 + 611 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 8378611011 - 2⁵ = 8378610979 is a prime.

It is a super-2 number, since 2×8378611011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8378611091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700410 + ... + 712271.

It is an arithmetic number, because the mean of its divisors is an integer number (1010067630).

Almost surely, 2^8378611011 is an apocalyptic number.

8378611011 is a deficient number, since it is larger than the sum of its proper divisors (3742200549).

8378611011 is a wasteful number, since it uses less digits than its factorization.

8378611011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413346 (or 1413343 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 8378611011 is about 91534.7530231005. The cubic root of 8378611011 is about 2031.0658748498.

Adding to 8378611011 its reverse (1101168738), we get a palindrome (9479779749).

The spelling of 8378611011 in words is "eight billion, three hundred seventy-eight million, six hundred eleven thousand, eleven".