6984997632 has 144 divisors (see below), whose sum is σ = 20965553280. Its totient is φ = 2293429248.

The previous prime is 6984997631. The next prime is 6984997651. The reversal of 6984997632 is 2367994896.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 6984997632.

It is not an unprimeable number, because it can be changed into a prime (6984997631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455563 + ... + 470645.

It is an arithmetic number, because the mean of its divisors is an integer number (145594120).

Almost surely, 2^6984997632 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 6984997632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10482776640).

6984997632 is an abundant number, since it is smaller than the sum of its proper divisors (13980555648).

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

6984997632 is a wasteful number, since it uses less digits than its factorization.

6984997632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15175 (or 15155 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 63.

The square root of 6984997632 is about 83576.2982669130. The cubic root of 6984997632 is about 1911.5636101928.

The spelling of 6984997632 in words is "six billion, nine hundred eighty-four million, nine hundred ninety-seven thousand, six hundred thirty-two".