677048797044 has 120 divisors (see below), whose sum is σ = 1781089373448. Its totient is φ = 224265646080.

The previous prime is 677048797031. The next prime is 677048797049. The reversal of 677048797044 is 440797840776.

677048797044 is a `hidden beast` number, since 67 + 7 + 0 + 487 + 97 + 0 + 4 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 70538048100 + 606510748944 = 265590^2 + 778788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677048797049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33949444 + ... + 33969380.

Almost surely, 2^677048797044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677048797044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (890544686724).

677048797044 is an abundant number, since it is smaller than the sum of its proper divisors (1104040576404).

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

677048797044 is a wasteful number, since it uses less digits than its factorization.

677048797044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20607 (or 20596 counting only the distinct ones).

The product of its (nonzero) digits is 66382848, while the sum is 63.

The spelling of 677048797044 in words is "six hundred seventy-seven billion, forty-eight million, seven hundred ninety-seven thousand, forty-four".