6891054976 has 256 divisors, whose sum is σ = 16450560000. Its totient is φ = 2846638080.

The previous prime is 6891054923. The next prime is 6891055013. The reversal of 6891054976 is 6794501986.

It is a congruent number.

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, 77427540 + ... + 77427628.

It is an arithmetic number, because the mean of its divisors is an integer number (64260000).

Almost surely, 2^6891054976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6891054976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8225280000).

6891054976 is an abundant number, since it is smaller than the sum of its proper divisors (9559505024).

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

6891054976 is a wasteful number, since it uses less digits than its factorization.

6891054976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 6891054976 is about 83012.3784504456. The cubic root of 6891054976 is about 1902.9552326694.

The spelling of 6891054976 in words is "six billion, eight hundred ninety-one million, fifty-four thousand, nine hundred seventy-six".