2746643280 has 80 divisors (see below), whose sum is σ = 8521787904. Its totient is φ = 731819520.

The previous prime is 2746643261. The next prime is 2746643297. The reversal of 2746643280 is 823466472.

2746643280 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327297 + ... + 335583.

Almost surely, 2^2746643280 is an apocalyptic number.

2746643280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2746643280 is an abundant number, since it is smaller than the sum of its proper divisors (5775144624).

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

2746643280 is a wasteful number, since it uses less digits than its factorization.

2746643280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9684 (or 9678 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 2746643280 is about 52408.4275665660. The cubic root of 2746643280 is about 1400.4493931465.

The spelling of 2746643280 in words is "two billion, seven hundred forty-six million, six hundred forty-three thousand, two hundred eighty".