1311376538877 has 8 divisors (see below), whose sum is σ = 1748634737664. Its totient is φ = 874184683008.

The previous prime is 1311376538831. The next prime is 1311376538893. The reversal of 1311376538877 is 7788356731131.

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

It is not a de Polignac number, because 1311376538877 - 2⁸ = 1311376538621 is a prime.

It is a super-2 number, since 2×1311376538877² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311376538877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311376538677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16539588 + ... + 16618685.

It is an arithmetic number, because the mean of its divisors is an integer number (218579342208).

Almost surely, 2^{1311376538877} is an apocalyptic number.

It is an amenable number.

1311376538877 is a deficient number, since it is larger than the sum of its proper divisors (437258198787).

1311376538877 is a wasteful number, since it uses less digits than its factorization.

1311376538877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33171459.

The product of its digits is 17781120, while the sum is 60.

The spelling of 1311376538877 in words is "one trillion, three hundred eleven billion, three hundred seventy-six million, five hundred thirty-eight thousand, eight hundred seventy-seven".