6390948811 has 16 divisors (see below), whose sum is σ = 6948396000. Its totient is φ = 5843109888.

The previous prime is 6390948793. The next prime is 6390948829. The reversal of 6390948811 is 1188490936.

It is an interprime number because it is at equal distance from previous prime (6390948793) and next prime (6390948829).

It is a cyclic number.

It is not a de Polignac number, because 6390948811 - 2⁵ = 6390948779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6390948211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 807405 + ... + 815281.

It is an arithmetic number, because the mean of its divisors is an integer number (434274750).

Almost surely, 2^6390948811 is an apocalyptic number.

6390948811 is a deficient number, since it is larger than the sum of its proper divisors (557447189).

6390948811 is a wasteful number, since it uses less digits than its factorization.

6390948811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8478.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 6390948811 is about 79943.4100536123. The cubic root of 6390948811 is about 1855.7598726440.

The spelling of 6390948811 in words is "six billion, three hundred ninety million, nine hundred forty-eight thousand, eight hundred eleven".