6854990388 has 24 divisors (see below), whose sum is σ = 16159876992. Its totient is φ = 2261439744.

The previous prime is 6854990347. The next prime is 6854990399. The reversal of 6854990388 is 8830994586.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2943420 + ... + 2945747.

It is an arithmetic number, because the mean of its divisors is an integer number (673328208).

Almost surely, 2^6854990388 is an apocalyptic number.

It is an amenable number.

6854990388 is an abundant number, since it is smaller than the sum of its proper divisors (9304886604).

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

6854990388 is a wasteful number, since it uses less digits than its factorization.

6854990388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889271 (or 5889269 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 60.

The square root of 6854990388 is about 82794.8693337939. The cubic root of 6854990388 is about 1899.6296958853.

The spelling of 6854990388 in words is "six billion, eight hundred fifty-four million, nine hundred ninety thousand, three hundred eighty-eight".