677642605352 has 8 divisors (see below), whose sum is σ = 1270579885050. Its totient is φ = 338821302672.

The previous prime is 677642605319. The next prime is 677642605357. The reversal of 677642605352 is 253506246776.

It can be written as a sum of positive squares in only one way, i.e., 494976974116 + 182665631236 = 703546^2 + 427394^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 677642605294 and 677642605303.

It is not an unprimeable number, because it can be changed into a prime (677642605357) 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 as a sum of consecutive naturals, namely, 42352662827 + ... + 42352662842.

Almost surely, 2^677642605352 is an apocalyptic number.

It is an amenable number.

677642605352 is a deficient number, since it is larger than the sum of its proper divisors (592937279698).

677642605352 is a wasteful number, since it uses less digits than its factorization.

677642605352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84705325675 (or 84705325671 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 53.

The spelling of 677642605352 in words is "six hundred seventy-seven billion, six hundred forty-two million, six hundred five thousand, three hundred fifty-two".