2664749920 has 48 divisors (see below), whose sum is σ = 7194827808. Its totient is φ = 913628160.

The previous prime is 2664749903. The next prime is 2664749921. The reversal of 2664749920 is 299474662.

It is a super-2 number, since 2×2664749920² = 14201784272280012800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664749921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188501 + ... + 1190740.

It is an arithmetic number, because the mean of its divisors is an integer number (149892246).

Almost surely, 2^2664749920 is an apocalyptic number.

2664749920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2664749920 is an abundant number, since it is smaller than the sum of its proper divisors (4530077888).

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

2664749920 is a wasteful number, since it uses less digits than its factorization.

2664749920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379263 (or 2379255 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 2664749920 is about 51621.2157935088. The cubic root of 2664749920 is about 1386.3902195869.

It can be divided in two parts, 26647 and 49920, that added together give a palindrome (76567).

The spelling of 2664749920 in words is "two billion, six hundred sixty-four million, seven hundred forty-nine thousand, nine hundred twenty".