687528474429 has 12 divisors (see below), whose sum is σ = 973800424064. Its totient is φ = 431390414784.

The previous prime is 687528474419. The next prime is 687528474461. The reversal of 687528474429 is 924474825786.

It is not a de Polignac number, because 687528474429 - 2⁷ = 687528474301 is a prime.

It is a super-3 number, since 3×687528474429³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 687528474429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687528474419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396497677 + ... + 396499410.

Almost surely, 2^687528474429 is an apocalyptic number.

It is an amenable number.

687528474429 is a deficient number, since it is larger than the sum of its proper divisors (286271949635).

687528474429 is a wasteful number, since it uses less digits than its factorization.

687528474429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792997124 (or 792997107 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 66.

The spelling of 687528474429 in words is "six hundred eighty-seven billion, five hundred twenty-eight million, four hundred seventy-four thousand, four hundred twenty-nine".