6812015520 has 96 divisors (see below), whose sum is σ = 21981274560. Its totient is φ = 1772226560.

The previous prime is 6812015503. The next prime is 6812015531. The reversal of 6812015520 is 255102186.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 153390 + ... + 192749.

It is an arithmetic number, because the mean of its divisors is an integer number (228971610).

Almost surely, 2^6812015520 is an apocalyptic number.

6812015520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6812015520 is an abundant number, since it is smaller than the sum of its proper divisors (15169259040).

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

6812015520 is a wasteful number, since it uses less digits than its factorization.

6812015520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346198 (or 346190 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 6812015520 is about 82534.9351486993. The cubic root of 6812015520 is about 1895.6516923244.

The spelling of 6812015520 in words is "six billion, eight hundred twelve million, fifteen thousand, five hundred twenty".