2856887770620 has 96 divisors (see below), whose sum is σ = 8892506327040. Its totient is φ = 680548942080.

The previous prime is 2856887770591. The next prime is 2856887770621. The reversal of 2856887770620 is 260777886582.

It is a super-2 number, since 2×2856887770620² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856887770621) 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, 59051250 + ... + 59099609.

It is an arithmetic number, because the mean of its divisors is an integer number (92630274240).

Almost surely, 2^{2856887770620} is an apocalyptic number.

2856887770620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2856887770620 is an abundant number, since it is smaller than the sum of its proper divisors (6035618556420).

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

2856887770620 is a wasteful number, since it uses less digits than its factorization.

2856887770620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118150915 (or 118150913 counting only the distinct ones).

The product of its (nonzero) digits is 126443520, while the sum is 66.

The spelling of 2856887770620 in words is "two trillion, eight hundred fifty-six billion, eight hundred eighty-seven million, seven hundred seventy thousand, six hundred twenty".