7646040020 has 24 divisors (see below), whose sum is σ = 17001195624. Its totient is φ = 2878509056.

The previous prime is 7646040013. The next prime is 7646040049. The reversal of 7646040020 is 200406467.

It can be written as a sum of positive squares in 4 ways, for example, as 895445776 + 6750594244 = 29924^2 + 82162^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11243837 + ... + 11244516.

It is an arithmetic number, because the mean of its divisors is an integer number (708383151).

Almost surely, 2^7646040020 is an apocalyptic number.

It is an amenable number.

7646040020 is an abundant number, since it is smaller than the sum of its proper divisors (9355155604).

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

7646040020 is a wasteful number, since it uses less digits than its factorization.

7646040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22488379 (or 22488377 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 7646040020 is about 87441.6377934448. The cubic root of 7646040020 is about 1970.0572891686.

Adding to 7646040020 its reverse (200406467), we get a palindrome (7846446487).

The spelling of 7646040020 in words is "seven billion, six hundred forty-six million, forty thousand, twenty".