677335381591 has 24 divisors (see below), whose sum is σ = 779106232800. Its totient is φ = 587298803520.

The previous prime is 677335381537. The next prime is 677335381621. The reversal of 677335381591 is 195183533776.

It is not a de Polignac number, because 677335381591 - 2¹⁷ = 677335250519 is a prime.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677335381511) 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 23 ways as a sum of consecutive naturals, for example, 622581 + ... + 1319953.

It is an arithmetic number, because the mean of its divisors is an integer number (32462759700).

Almost surely, 2^677335381591 is an apocalyptic number.

677335381591 is a deficient number, since it is larger than the sum of its proper divisors (101770851209).

677335381591 is a wasteful number, since it uses less digits than its factorization.

677335381591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697767 (or 697756 counting only the distinct ones).

The product of its digits is 14288400, while the sum is 58.

The spelling of 677335381591 in words is "six hundred seventy-seven billion, three hundred thirty-five million, three hundred eighty-one thousand, five hundred ninety-one".