687481354754 has 16 divisors (see below), whose sum is σ = 1039553877696. Its totient is φ = 340969986000.

The previous prime is 687481354733. The next prime is 687481354771. The reversal of 687481354754 is 457453184786.

It is a super-2 number, since 2×687481354754² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1438517 + ... + 1855880.

It is an arithmetic number, because the mean of its divisors is an integer number (64972117356).

Almost surely, 2^687481354754 is an apocalyptic number.

687481354754 is a deficient number, since it is larger than the sum of its proper divisors (352072522942).

687481354754 is a wasteful number, since it uses less digits than its factorization.

687481354754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295241.

The product of its digits is 90316800, while the sum is 62.

The spelling of 687481354754 in words is "six hundred eighty-seven billion, four hundred eighty-one million, three hundred fifty-four thousand, seven hundred fifty-four".