6977778048 has 112 divisors (see below), whose sum is σ = 20842307700. Its totient is φ = 2325894912.

The previous prime is 6977778043. The next prime is 6977778079. The reversal of 6977778048 is 8408777796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6977778043) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 55923 + ... + 130701.

Almost surely, 2^6977778048 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 6977778048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10421153850).

6977778048 is an abundant number, since it is smaller than the sum of its proper divisors (13864529652).

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

6977778048 is an frugal number, since it uses more digits than its factorization.

6977778048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74811 (or 74784 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 63.

The square root of 6977778048 is about 83533.0955250672. The cubic root of 6977778048 is about 1910.9047957717.

The spelling of 6977778048 in words is "six billion, nine hundred seventy-seven million, seven hundred seventy-eight thousand, forty-eight".