6889780948 has 24 divisors (see below), whose sum is σ = 12318308352. Its totient is φ = 3370319904.

The previous prime is 6889780921. The next prime is 6889780957. The reversal of 6889780948 is 8490879886.

It is a super-2 number, since 2×6889780948² = 94938163022847557408, which contains 22 as substring.

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, 663565 + ... + 673867.

It is an arithmetic number, because the mean of its divisors is an integer number (513262848).

Almost surely, 2^6889780948 is an apocalyptic number.

It is an amenable number.

6889780948 is a deficient number, since it is larger than the sum of its proper divisors (5428527404).

6889780948 is a wasteful number, since it uses less digits than its factorization.

6889780948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13911 (or 13909 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 67.

The square root of 6889780948 is about 83004.7043727041. The cubic root of 6889780948 is about 1902.8379517556.

The spelling of 6889780948 in words is "six billion, eight hundred eighty-nine million, seven hundred eighty thousand, nine hundred forty-eight".