1311697677 has 8 divisors (see below), whose sum is σ = 1750159840. Its totient is φ = 873850320.

The previous prime is 1311697669. The next prime is 1311697697. The reversal of 1311697677 is 7767961131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311697677 - 2³ = 1311697669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311697697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148699 + ... + 157272.

It is an arithmetic number, because the mean of its divisors is an integer number (218769980).

Almost surely, 2^1311697677 is an apocalyptic number.

It is an amenable number.

1311697677 is a deficient number, since it is larger than the sum of its proper divisors (438462163).

1311697677 is a wasteful number, since it uses less digits than its factorization.

1311697677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307403.

The product of its digits is 333396, while the sum is 48.

The square root of 1311697677 is about 36217.3670633303. The cubic root of 1311697677 is about 1094.6566417870.

The spelling of 1311697677 in words is "one billion, three hundred eleven million, six hundred ninety-seven thousand, six hundred seventy-seven".