677531440000 has 160 divisors (see below), whose sum is σ = 1694147855400. Its totient is φ = 269811456000.

The previous prime is 677531439983. The next prime is 677531440043. The reversal of 677531440000 is 44135776.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18141346 + ... + 18178654.

Almost surely, 2^677531440000 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 677531440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847073927700).

677531440000 is an abundant number, since it is smaller than the sum of its proper divisors (1016616415400).

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

677531440000 is an equidigital number, since it uses as much as digits as its factorization.

677531440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37570 (or 37543 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

Adding to 677531440000 its reverse (44135776), we get a palindrome (677575575776).

The spelling of 677531440000 in words is "six hundred seventy-seven billion, five hundred thirty-one million, four hundred forty thousand".