2871612918720 has 504 divisors, whose sum is σ = 12373582856544. Its totient is φ = 605878382592.

The previous prime is 2871612918679. The next prime is 2871612918739. The reversal of 2871612918720 is 278192161782.

2871612918720 is a `hidden beast` number, since 2 + 8 + 7 + 1 + 612 + 9 + 18 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1051917 + ... + 2617203.

It is an arithmetic number, because the mean of its divisors is an integer number (24550759636).

Almost surely, 2^{2871612918720} is an apocalyptic number.

2871612918720 is a gapful number since it is divisible by the number (20) 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 2871612918720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6186791428272).

2871612918720 is an abundant number, since it is smaller than the sum of its proper divisors (9501969937824).

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

2871612918720 is a wasteful number, since it uses less digits than its factorization.

2871612918720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565337 (or 1565317 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The spelling of 2871612918720 in words is "two trillion, eight hundred seventy-one billion, six hundred twelve million, nine hundred eighteen thousand, seven hundred twenty".