677660367440 has 40 divisors (see below), whose sum is σ = 1800640406400. Its totient is φ = 232340697216.

The previous prime is 677660367341. The next prime is 677660367463. The reversal of 677660367440 is 44763066776.

677660367440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

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, 605053340 + ... + 605054459.

It is an arithmetic number, because the mean of its divisors is an integer number (45016010160).

Almost surely, 2^677660367440 is an apocalyptic number.

It is an amenable number.

677660367440 is an abundant number, since it is smaller than the sum of its proper divisors (1122980038960).

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

677660367440 is a wasteful number, since it uses less digits than its factorization.

677660367440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210107819 (or 1210107813 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 56.

The spelling of 677660367440 in words is "six hundred seventy-seven billion, six hundred sixty million, three hundred sixty-seven thousand, four hundred forty".