2664548838 has 64 divisors (see below), whose sum is σ = 6774213120. Its totient is φ = 760500576.

The previous prime is 2664548833. The next prime is 2664548881. The reversal of 2664548838 is 8388454662.

2664548838 is a `hidden beast` number, since 2 + 6 + 64 + 548 + 8 + 38 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664548833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421356 + ... + 427632.

It is an arithmetic number, because the mean of its divisors is an integer number (105847080).

Almost surely, 2^2664548838 is an apocalyptic number.

2664548838 is an abundant number, since it is smaller than the sum of its proper divisors (4109664282).

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

2664548838 is a wasteful number, since it uses less digits than its factorization.

2664548838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7418 (or 7412 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 54.

The square root of 2664548838 is about 51619.2680885733. The cubic root of 2664548838 is about 1386.3553463794.

The spelling of 2664548838 in words is "two billion, six hundred sixty-four million, five hundred forty-eight thousand, eight hundred thirty-eight".