677451615133 has 4 divisors (see below), whose sum is σ = 677507851900. Its totient is φ = 677395378368.

The previous prime is 677451615091. The next prime is 677451615209. The reversal of 677451615133 is 331516154776.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 554782156569 + 122669458564 = 744837^2 + 350242^2 .

It is a cyclic number.

It is not a de Polignac number, because 677451615133 - 2³³ = 668861680541 is a prime.

It is a super-3 number, since 3×677451615133³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677451619133) 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 3 ways as a sum of consecutive naturals, for example, 28100310 + ... + 28124407.

It is an arithmetic number, because the mean of its divisors is an integer number (169376962975).

Almost surely, 2^677451615133 is an apocalyptic number.

It is an amenable number.

677451615133 is a deficient number, since it is larger than the sum of its proper divisors (56236767).

677451615133 is a wasteful number, since it uses less digits than its factorization.

677451615133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56236766.

The product of its digits is 1587600, while the sum is 49.

The spelling of 677451615133 in words is "six hundred seventy-seven billion, four hundred fifty-one million, six hundred fifteen thousand, one hundred thirty-three".