7857275456 has 56 divisors (see below), whose sum is σ = 16512722880. Its totient is φ = 3701693952.

The previous prime is 7857275453. The next prime is 7857275471. The reversal of 7857275456 is 6545727587.

It is not an unprimeable number, because it can be changed into a prime (7857275453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58790 + ... + 138458.

Almost surely, 2^7857275456 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 7857275456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8256361440).

7857275456 is an abundant number, since it is smaller than the sum of its proper divisors (8655447424).

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

7857275456 is a wasteful number, since it uses less digits than its factorization.

7857275456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79771 (or 79761 counting only the distinct ones).

The product of its digits is 16464000, while the sum is 56.

The square root of 7857275456 is about 88641.2739980648. The cubic root of 7857275456 is about 1988.0348483218.

The spelling of 7857275456 in words is "seven billion, eight hundred fifty-seven million, two hundred seventy-five thousand, four hundred fifty-six".