687238483858 has 16 divisors (see below), whose sum is σ = 1033355327616. Its totient is φ = 342786965040.

The previous prime is 687238483843. The next prime is 687238483879. The reversal of 687238483858 is 858384832786.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5585623 + ... + 5707333.

It is an arithmetic number, because the mean of its divisors is an integer number (64584707976).

Almost surely, 2^687238483858 is an apocalyptic number.

687238483858 is a deficient number, since it is larger than the sum of its proper divisors (346116843758).

687238483858 is a wasteful number, since it uses less digits than its factorization.

687238483858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128529.

The product of its digits is 495452160, while the sum is 70.

The spelling of 687238483858 in words is "six hundred eighty-seven billion, two hundred thirty-eight million, four hundred eighty-three thousand, eight hundred fifty-eight".