687563152472 has 32 divisors (see below), whose sum is σ = 1473398584320. Its totient is φ = 294660128160.

The previous prime is 687563152469. The next prime is 687563152477. The reversal of 687563152472 is 274251365786.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687563152477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1643897 + ... + 2019287.

It is an arithmetic number, because the mean of its divisors is an integer number (46043705760).

Almost surely, 2^687563152472 is an apocalyptic number.

It is an amenable number.

687563152472 is an abundant number, since it is smaller than the sum of its proper divisors (785835431848).

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

687563152472 is a wasteful number, since it uses less digits than its factorization.

687563152472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408111 (or 408107 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 56.

The spelling of 687563152472 in words is "six hundred eighty-seven billion, five hundred sixty-three million, one hundred fifty-two thousand, four hundred seventy-two".