6988989696 has 144 divisors (see below), whose sum is σ = 20287599360. Its totient is φ = 2122997760.

The previous prime is 6988989677. The next prime is 6988989713. The reversal of 6988989696 is 6969898896.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784306 + ... + 793166.

Almost surely, 2^6988989696 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 6988989696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10143799680).

6988989696 is an abundant number, since it is smaller than the sum of its proper divisors (13298609664).

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

6988989696 is a wasteful number, since it uses less digits than its factorization.

6988989696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8972 (or 8958 counting only the distinct ones).

The product of its digits is 725594112, while the sum is 78.

The square root of 6988989696 is about 83600.1776074668. The cubic root of 6988989696 is about 1911.9277062819.

The spelling of 6988989696 in words is "six billion, nine hundred eighty-eight million, nine hundred eighty-nine thousand, six hundred ninety-six".