6768572520 has 32 divisors (see below), whose sum is σ = 20305717920. Its totient is φ = 1804952640.

The previous prime is 6768572513. The next prime is 6768572527. The reversal of 6768572520 is 252758676.

It is an interprime number because it is at equal distance from previous prime (6768572513) and next prime (6768572527).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6768572520.

It is not an unprimeable number, because it can be changed into a prime (6768572527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28202266 + ... + 28202505.

It is an arithmetic number, because the mean of its divisors is an integer number (634553685).

Almost surely, 2^6768572520 is an apocalyptic number.

6768572520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6768572520 is an abundant number, since it is smaller than the sum of its proper divisors (13537145400).

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

6768572520 is a wasteful number, since it uses less digits than its factorization.

6768572520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56404785 (or 56404781 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The square root of 6768572520 is about 82271.3347406009. The cubic root of 6768572520 is about 1891.6133141126.

The spelling of 6768572520 in words is "six billion, seven hundred sixty-eight million, five hundred seventy-two thousand, five hundred twenty".