7681145610 has 128 divisors (see below), whose sum is σ = 20006507520. Its totient is φ = 1882911744.

The previous prime is 7681145603. The next prime is 7681145663. The reversal of 7681145610 is 165411867.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1510392 + ... + 1515468.

It is an arithmetic number, because the mean of its divisors is an integer number (156300840).

Almost surely, 2^7681145610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7681145610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10003253760).

7681145610 is an abundant number, since it is smaller than the sum of its proper divisors (12325361910).

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

7681145610 is a wasteful number, since it uses less digits than its factorization.

7681145610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 7681145610 is about 87642.1451700037. The cubic root of 7681145610 is about 1973.0677558791.

The spelling of 7681145610 in words is "seven billion, six hundred eighty-one million, one hundred forty-five thousand, six hundred ten".