2854864047840 has 384 divisors, whose sum is σ = 10613528174592. Its totient is φ = 631223746560.

The previous prime is 2854864047821. The next prime is 2854864047851. The reversal of 2854864047840 is 487404684582.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 345077944 + ... + 345086216.

It is an arithmetic number, because the mean of its divisors is an integer number (27639396288).

Almost surely, 2^{2854864047840} is an apocalyptic number.

2854864047840 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 2854864047840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5306764087296).

2854864047840 is an abundant number, since it is smaller than the sum of its proper divisors (7758664126752).

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

2854864047840 is a wasteful number, since it uses less digits than its factorization.

2854864047840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11642 (or 11634 counting only the distinct ones).

The product of its (nonzero) digits is 55050240, while the sum is 60.

The spelling of 2854864047840 in words is "two trillion, eight hundred fifty-four billion, eight hundred sixty-four million, forty-seven thousand, eight hundred forty".