6972121960 has 64 divisors (see below), whose sum is σ = 16415354880. Its totient is φ = 2661880320.

The previous prime is 6972121939. The next prime is 6972121967. The reversal of 6972121960 is 691212796.

It is a happy number.

It is a super-2 number, since 2×6972121960² = 97220969250228483200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6972121967) 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, 52009 + ... + 129031.

It is an arithmetic number, because the mean of its divisors is an integer number (256489920).

Almost surely, 2^6972121960 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 6972121960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8207677440).

6972121960 is an abundant number, since it is smaller than the sum of its proper divisors (9443232920).

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

6972121960 is a wasteful number, since it uses less digits than its factorization.

6972121960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77138 (or 77134 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 6972121960 is about 83499.2332898931. The cubic root of 6972121960 is about 1910.3883387533.

The spelling of 6972121960 in words is "six billion, nine hundred seventy-two million, one hundred twenty-one thousand, nine hundred sixty".