2891843093764 has 9 divisors (see below), whose sum is σ = 5060731365991. Its totient is φ = 1445919846340.

The previous prime is 2891843093677. The next prime is 2891843093831. The reversal of 2891843093764 is 4673903481982.

The square root of 2891843093764 is 1700542.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2891843093696 and 2891843093705.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2975949 + ... + 3826219.

Almost surely, 2^{2891843093764} is an apocalyptic number.

2891843093764 is the 1700542-nd square number.

It is an amenable number.

2891843093764 is a deficient number, since it is larger than the sum of its proper divisors (2168888272227).

2891843093764 is an frugal number, since it uses more digits than its factorization.

2891843093764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700546 (or 850273 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 64.

Multiplying 2891843093764 by its sum of digits (64), we get a square (185077958000896 = 13604336²).

The spelling of 2891843093764 in words is "two trillion, eight hundred ninety-one billion, eight hundred forty-three million, ninety-three thousand, seven hundred sixty-four".