677971348506 has 48 divisors (see below), whose sum is σ = 1484656293120. Its totient is φ = 223576549920.

The previous prime is 677971348477. The next prime is 677971348559. The reversal of 677971348506 is 605843179776.

677971348506 is a `hidden beast` number, since 6 + 7 + 7 + 97 + 1 + 34 + 8 + 506 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1713855 + ... + 2072013.

It is an arithmetic number, because the mean of its divisors is an integer number (30930339440).

Almost surely, 2^677971348506 is an apocalyptic number.

677971348506 is an abundant number, since it is smaller than the sum of its proper divisors (806684944614).

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

677971348506 is a wasteful number, since it uses less digits than its factorization.

677971348506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359291 (or 359288 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 677971348506 in words is "six hundred seventy-seven billion, nine hundred seventy-one million, three hundred forty-eight thousand, five hundred six".