6501378272 has 24 divisors (see below), whose sum is σ = 13552506576. Its totient is φ = 3059471872.

The previous prime is 6501378269. The next prime is 6501378287. The reversal of 6501378272 is 2728731056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5974988 + ... + 5976075.

It is an arithmetic number, because the mean of its divisors is an integer number (564687774).

Almost surely, 2^6501378272 is an apocalyptic number.

It is an amenable number.

6501378272 is an abundant number, since it is smaller than the sum of its proper divisors (7051128304).

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

6501378272 is a wasteful number, since it uses less digits than its factorization.

6501378272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11951090 (or 11951082 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 6501378272 is about 80631.1247100027. The cubic root of 6501378272 is about 1866.3874771791.

The spelling of 6501378272 in words is "six billion, five hundred one million, three hundred seventy-eight thousand, two hundred seventy-two".