677125062440 has 16 divisors (see below), whose sum is σ = 1523531390580. Its totient is φ = 270850024960.

The previous prime is 677125062437. The next prime is 677125062457. The reversal of 677125062440 is 44260521776.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 659158876996 + 17966185444 = 811886^2 + 134038^2 .

It is a junction number, because it is equal to n+sod(n) for n = 677125062391 and 677125062400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8464063241 + ... + 8464063320.

Almost surely, 2^677125062440 is an apocalyptic number.

It is an amenable number.

677125062440 is an abundant number, since it is smaller than the sum of its proper divisors (846406328140).

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

677125062440 is a wasteful number, since it uses less digits than its factorization.

677125062440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16928126572 (or 16928126568 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 677125062440 in words is "six hundred seventy-seven billion, one hundred twenty-five million, sixty-two thousand, four hundred forty".