6916990680 has 256 divisors, whose sum is σ = 23969520000. Its totient is φ = 1772144640.

The previous prime is 6916990673. The next prime is 6916990693. The reversal of 6916990680 is 860996196.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 8424670 + ... + 8425490.

Almost surely, 2^6916990680 is an apocalyptic number.

6916990680 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 6916990680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11984760000).

6916990680 is an abundant number, since it is smaller than the sum of its proper divisors (17052529320).

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

6916990680 is a wasteful number, since it uses less digits than its factorization.

6916990680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The square root of 6916990680 is about 83168.4476228816. The cubic root of 6916990680 is about 1905.3396133313.

The spelling of 6916990680 in words is "six billion, nine hundred sixteen million, nine hundred ninety thousand, six hundred eighty".