6918554012 has 24 divisors (see below), whose sum is σ = 12561136560. Its totient is φ = 3330346880.

The previous prime is 6918554009. The next prime is 6918554017. The reversal of 6918554012 is 2104558196.

It is a super-2 number, since 2×6918554012² = 95732779233922592288, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6918554017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45689 + ... + 126192.

It is an arithmetic number, because the mean of its divisors is an integer number (523380690).

Almost surely, 2^6918554012 is an apocalyptic number.

It is an amenable number.

6918554012 is a deficient number, since it is larger than the sum of its proper divisors (5642582548).

6918554012 is a wasteful number, since it uses less digits than its factorization.

6918554012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172261 (or 172259 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 6918554012 is about 83177.8456802050. The cubic root of 6918554012 is about 1905.4831465597.

The spelling of 6918554012 in words is "six billion, nine hundred eighteen million, five hundred fifty-four thousand, twelve".