2918343555856 has 15 divisors (see below), whose sum is σ = 5654303878951. Its totient is φ = 1459168361296.

The previous prime is 2918343555823. The next prime is 2918343555889. The reversal of 2918343555856 is 6585553438192.

The square root of 2918343555856 is 1708316.

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

It is an interprime number because it is at equal distance from previous prime (2918343555823) and next prime (2918343555889).

It is a super-2 number, since 2×2918343555856² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

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, 6619725 + ... + 7046803.

Almost surely, 2^{2918343555856} is an apocalyptic number.

2918343555856 is the 1708316-th square number.

It is an amenable number.

2918343555856 is a deficient number, since it is larger than the sum of its proper divisors (2735960323095).

2918343555856 is an frugal number, since it uses more digits than its factorization.

2918343555856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854166 (or 427081 counting only the distinct ones).

The product of its digits is 155520000, while the sum is 64.

Multiplying 2918343555856 by its sum of digits (64), we get a square (186773987574784 = 13666528²).

The spelling of 2918343555856 in words is "two trillion, nine hundred eighteen billion, three hundred forty-three million, five hundred fifty-five thousand, eight hundred fifty-six".