2856451092 has 96 divisors (see below), whose sum is σ = 7356935040. Its totient is φ = 855429120.

The previous prime is 2856451049. The next prime is 2856451093. The reversal of 2856451092 is 2901546582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856451093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6983784 + ... + 6984192.

It is an arithmetic number, because the mean of its divisors is an integer number (76634740).

Almost surely, 2^2856451092 is an apocalyptic number.

2856451092 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2856451092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3678467520).

2856451092 is an abundant number, since it is smaller than the sum of its proper divisors (4500483948).

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

2856451092 is a wasteful number, since it uses less digits than its factorization.

2856451092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 2856451092 is about 53445.7771203675. Note that the first 3 decimals coincide. The cubic root of 2856451092 is about 1418.8688823460.

The spelling of 2856451092 in words is "two billion, eight hundred fifty-six million, four hundred fifty-one thousand, ninety-two".