6501257815772 has 24 divisors (see below), whose sum is σ = 11977577472000. Its totient is φ = 3079137859056.

The previous prime is 6501257815757. The next prime is 6501257815799. The reversal of 6501257815772 is 2775187521056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5047772 + ... + 6203427.

It is an arithmetic number, because the mean of its divisors is an integer number (499065728000).

Almost surely, 2^{6501257815772} is an apocalyptic number.

It is an amenable number.

6501257815772 is a deficient number, since it is larger than the sum of its proper divisors (5476319656228).

6501257815772 is a wasteful number, since it uses less digits than its factorization.

6501257815772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11258825 (or 11258823 counting only the distinct ones).

The product of its (nonzero) digits is 8232000, while the sum is 56.

The spelling of 6501257815772 in words is "six trillion, five hundred one billion, two hundred fifty-seven million, eight hundred fifteen thousand, seven hundred seventy-two".