6961504145 has 24 divisors (see below), whose sum is σ = 8834155560. Its totient is φ = 5265596160.

The previous prime is 6961504141. The next prime is 6961504211. The reversal of 6961504145 is 5414051696.

It can be written as a sum of positive squares in 4 ways, for example, as 762146449 + 6199357696 = 27607^2 + 78736^2 .

It is not a de Polignac number, because 6961504145 - 2² = 6961504141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6961504141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 972941 + ... + 980069.

It is an arithmetic number, because the mean of its divisors is an integer number (368089815).

Almost surely, 2^6961504145 is an apocalyptic number.

It is an amenable number.

6961504145 is a deficient number, since it is larger than the sum of its proper divisors (1872651415).

6961504145 is a wasteful number, since it uses less digits than its factorization.

6961504145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7713 (or 7694 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 6961504145 is about 83435.6287505524. The cubic root of 6961504145 is about 1909.4180719451.

The spelling of 6961504145 in words is "six billion, nine hundred sixty-one million, five hundred four thousand, one hundred forty-five".