2627871251856 has 80 divisors (see below), whose sum is σ = 7024784045760. Its totient is φ = 845507837440.

The previous prime is 2627871251813. The next prime is 2627871251891. The reversal of 2627871251856 is 6581521787262.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2627871251856.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4589086 + ... + 5129858.

It is an arithmetic number, because the mean of its divisors is an integer number (87809800572).

Almost surely, 2^{2627871251856} 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 2627871251856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3512392022880).

2627871251856 is an abundant number, since it is smaller than the sum of its proper divisors (4396912793904).

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

2627871251856 is a wasteful number, since it uses less digits than its factorization.

2627871251856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544304 (or 544298 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 60.

The spelling of 2627871251856 in words is "two trillion, six hundred twenty-seven billion, eight hundred seventy-one million, two hundred fifty-one thousand, eight hundred fifty-six".