311713550738 has 6 divisors (see below), whose sum is σ = 467571510471. Its totient is φ = 155856380582.

The previous prime is 311713550737. The next prime is 311713550747. The reversal of 311713550738 is 837055317113.

It can be written as a sum of positive squares in only one way, i.e., 155856775369 + 155856775369 = 394787^2 + 394787^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=394787.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311713550737) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 592181 + ... + 986967.

Almost surely, 2^311713550738 is an apocalyptic number.

311713550738 is a deficient number, since it is larger than the sum of its proper divisors (155857959733).

311713550738 is an frugal number, since it uses more digits than its factorization.

311713550738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789576 (or 394789 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 311713550738 in words is "three hundred eleven billion, seven hundred thirteen million, five hundred fifty thousand, seven hundred thirty-eight".