677570408655 has 64 divisors (see below), whose sum is σ = 1293526499328. Its totient is φ = 296125315200.

The previous prime is 677570408653. The next prime is 677570408663. The reversal of 677570408655 is 556804075776.

It is not a de Polignac number, because 677570408655 - 2¹ = 677570408653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677570408653) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 4639762 + ... + 4783568.

It is an arithmetic number, because the mean of its divisors is an integer number (20211351552).

Almost surely, 2^677570408655 is an apocalyptic number.

677570408655 is a deficient number, since it is larger than the sum of its proper divisors (615956090673).

677570408655 is a wasteful number, since it uses less digits than its factorization.

677570408655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145796.

The product of its (nonzero) digits is 49392000, while the sum is 60.

The spelling of 677570408655 in words is "six hundred seventy-seven billion, five hundred seventy million, four hundred eight thousand, six hundred fifty-five".