687497927712 has 48 divisors (see below), whose sum is σ = 1806429350880. Its totient is φ = 228944097792.

The previous prime is 687497927671. The next prime is 687497927719. The reversal of 687497927712 is 217729794786.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (687497927719) 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, 3367162 + ... + 3565497.

It is an arithmetic number, because the mean of its divisors is an integer number (37633944810).

Almost surely, 2^687497927712 is an apocalyptic number.

It is an amenable number.

687497927712 is an abundant number, since it is smaller than the sum of its proper divisors (1118931423168).

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

687497927712 is a wasteful number, since it uses less digits than its factorization.

687497927712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933705 (or 6933697 counting only the distinct ones).

The product of its digits is 149361408, while the sum is 69.

The spelling of 687497927712 in words is "six hundred eighty-seven billion, four hundred ninety-seven million, nine hundred twenty-seven thousand, seven hundred twelve".