2643966054 has 48 divisors (see below), whose sum is σ = 5944219008. Its totient is φ = 848641536.

The previous prime is 2643966043. The next prime is 2643966077. The reversal of 2643966054 is 4506693462.

2643966054 is a `hidden beast` number, since 2 + 6 + 4 + 39 + 6 + 605 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44139 + ... + 85065.

It is an arithmetic number, because the mean of its divisors is an integer number (123837896).

Almost surely, 2^2643966054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2643966054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2972109504).

2643966054 is an abundant number, since it is smaller than the sum of its proper divisors (3300252954).

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

2643966054 is a wasteful number, since it uses less digits than its factorization.

2643966054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41069 (or 41066 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The square root of 2643966054 is about 51419.5104410767. The cubic root of 2643966054 is about 1382.7763984929.

The spelling of 2643966054 in words is "two billion, six hundred forty-three million, nine hundred sixty-six thousand, fifty-four".