7851852640 has 48 divisors (see below), whose sum is σ = 18644239152. Its totient is φ = 3124785664.

The previous prime is 7851852623. The next prime is 7851852643. The reversal of 7851852640 is 462581587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7851852643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93034 + ... + 156073.

It is an arithmetic number, because the mean of its divisors is an integer number (388421649).

Almost surely, 2^7851852640 is an apocalyptic number.

It is an amenable number.

7851852640 is an abundant number, since it is smaller than the sum of its proper divisors (10792386512).

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

7851852640 is a wasteful number, since it uses less digits than its factorization.

7851852640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249319 (or 249311 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 46.

The square root of 7851852640 is about 88610.6801689277. The cubic root of 7851852640 is about 1987.5773857505.

The spelling of 7851852640 in words is "seven billion, eight hundred fifty-one million, eight hundred fifty-two thousand, six hundred forty".