6997651512 has 192 divisors, whose sum is σ = 19415635200. Its totient is φ = 2095349760.

The previous prime is 6997651511. The next prime is 6997651519. The reversal of 6997651512 is 2151567996.

It is a super-2 number, since 2×6997651512² = 97934253366791772288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997651511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27228088 + ... + 27228344.

It is an arithmetic number, because the mean of its divisors is an integer number (101123100).

Almost surely, 2^6997651512 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 6997651512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9707817600).

6997651512 is an abundant number, since it is smaller than the sum of its proper divisors (12417983688).

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

6997651512 is a wasteful number, since it uses less digits than its factorization.

6997651512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 381 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 51.

The square root of 6997651512 is about 83651.9665758074. The cubic root of 6997651512 is about 1912.7172304662.

The spelling of 6997651512 in words is "six billion, nine hundred ninety-seven million, six hundred fifty-one thousand, five hundred twelve".