6812748720 has 60 divisors (see below), whose sum is σ = 22879483536. Its totient is φ = 1816732800.

The previous prime is 6812748713. The next prime is 6812748751. The reversal of 6812748720 is 278472186.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4730356 + ... + 4731795.

Almost surely, 2^6812748720 is an apocalyptic number.

6812748720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6812748720 is an abundant number, since it is smaller than the sum of its proper divisors (16066734816).

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

6812748720 is a wasteful number, since it uses less digits than its factorization.

6812748720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9462170 (or 9462161 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 6812748720 is about 82539.3767846596. The cubic root of 6812748720 is about 1895.7197016604.

The spelling of 6812748720 in words is "six billion, eight hundred twelve million, seven hundred forty-eight thousand, seven hundred twenty".