6886797540 has 192 divisors, whose sum is σ = 23053234176. Its totient is φ = 1501936128.

The previous prime is 6886797539. The next prime is 6886797557. The reversal of 6886797540 is 457976886.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5920999 + ... + 5922161.

It is an arithmetic number, because the mean of its divisors is an integer number (120068928).

Almost surely, 2^6886797540 is an apocalyptic number.

6886797540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6886797540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11526617088).

6886797540 is an abundant number, since it is smaller than the sum of its proper divisors (16166436636).

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

6886797540 is a wasteful number, since it uses less digits than its factorization.

6886797540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 60.

The square root of 6886797540 is about 82986.7311080512. The cubic root of 6886797540 is about 1902.5632569278.

The spelling of 6886797540 in words is "six billion, eight hundred eighty-six million, seven hundred ninety-seven thousand, five hundred forty".