6453686372 has 48 divisors (see below), whose sum is σ = 13538370048. Its totient is φ = 2633834880.

The previous prime is 6453686363. The next prime is 6453686377. The reversal of 6453686372 is 2736863546.

It is a self number, because there is not a number n which added to its sum of digits gives 6453686372.

It is not an unprimeable number, because it can be changed into a prime (6453686377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17579 + ... + 114962.

It is an arithmetic number, because the mean of its divisors is an integer number (282049376).

Almost surely, 2^6453686372 is an apocalyptic number.

It is an amenable number.

6453686372 is an abundant number, since it is smaller than the sum of its proper divisors (7084683676).

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

6453686372 is a wasteful number, since it uses less digits than its factorization.

6453686372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132636 (or 132634 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 50.

The square root of 6453686372 is about 80334.8390923888. The cubic root of 6453686372 is about 1861.8125442227.

The spelling of 6453686372 in words is "six billion, four hundred fifty-three million, six hundred eighty-six thousand, three hundred seventy-two".