6997906480 has 80 divisors (see below), whose sum is σ = 16850617920. Its totient is φ = 2699518976.

The previous prime is 6997906471. The next prime is 6997906481. The reversal of 6997906480 is 846097996.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×6997906480³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (6997906481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3727302 + ... + 3729178.

It is an arithmetic number, because the mean of its divisors is an integer number (210632724).

Almost surely, 2^6997906480 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 6997906480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8425308960).

6997906480 is an abundant number, since it is smaller than the sum of its proper divisors (9852711440).

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

6997906480 is a wasteful number, since it uses less digits than its factorization.

6997906480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526 (or 3520 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 58.

The square root of 6997906480 is about 83653.4905428339. The cubic root of 6997906480 is about 1912.7404609154.

The spelling of 6997906480 in words is "six billion, nine hundred ninety-seven million, nine hundred six thousand, four hundred eighty".