1311862896 has 60 divisors (see below), whose sum is σ = 3760957200. Its totient is φ = 426620160.

The previous prime is 1311862873. The next prime is 1311862927. The reversal of 1311862896 is 6982681131.

1311862896 is a `hidden beast` number, since 1 + 3 + 1 + 18 + 628 + 9 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105196 + ... + 117003.

It is an arithmetic number, because the mean of its divisors is an integer number (62682620).

Almost surely, 2^1311862896 is an apocalyptic number.

1311862896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1311862896 is an abundant number, since it is smaller than the sum of its proper divisors (2449094304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311862896 is a wasteful number, since it uses less digits than its factorization.

1311862896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222254 (or 222245 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 1311862896 is about 36219.6479276097. The cubic root of 1311862896 is about 1094.7026001624.

The spelling of 1311862896 in words is "one billion, three hundred eleven million, eight hundred sixty-two thousand, eight hundred ninety-six".