687422237154 has 16 divisors (see below), whose sum is σ = 1374854953248. Its totient is φ = 229138999232.

The previous prime is 687422237143. The next prime is 687422237221. The reversal of 687422237154 is 451732224786.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 687422237097 and 687422237106.

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, 608689 + ... + 1321115.

It is an arithmetic number, because the mean of its divisors is an integer number (85928434578).

Almost surely, 2^687422237154 is an apocalyptic number.

687422237154 is an abundant number, since it is smaller than the sum of its proper divisors (687432716094).

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

687422237154 is a wasteful number, since it uses less digits than its factorization.

687422237154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873249.

The product of its digits is 4515840, while the sum is 51.

The spelling of 687422237154 in words is "six hundred eighty-seven billion, four hundred twenty-two million, two hundred thirty-seven thousand, one hundred fifty-four".