6978211011 has 24 divisors (see below), whose sum is σ = 10646777856. Its totient is φ = 4397364720.

The previous prime is 6978211007. The next prime is 6978211061. The reversal of 6978211011 is 1101128796.

It is not a de Polignac number, because 6978211011 - 2² = 6978211007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6978211061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278835 + ... + 302828.

It is an arithmetic number, because the mean of its divisors is an integer number (443615744).

Almost surely, 2^6978211011 is an apocalyptic number.

6978211011 is a deficient number, since it is larger than the sum of its proper divisors (3668566845).

6978211011 is a wasteful number, since it uses less digits than its factorization.

6978211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581743 (or 581740 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 36.

The square root of 6978211011 is about 83535.6870505055. The cubic root of 6978211011 is about 1910.9443180931.

The spelling of 6978211011 in words is "six billion, nine hundred seventy-eight million, two hundred eleven thousand, eleven".