7311399987164 has 96 divisors (see below), whose sum is σ = 16070971392000. Its totient is φ = 2892069109440.

The previous prime is 7311399987161. The next prime is 7311399987167. The reversal of 7311399987164 is 4617899931137.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7311399987161) and next prime (7311399987167).

It is a junction number, because it is equal to n+sod(n) for n = 7311399987094 and 7311399987103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7311399987161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184243877 + ... + 184283555.

It is an arithmetic number, because the mean of its divisors is an integer number (167405952000).

Almost surely, 2^{7311399987164} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7311399987164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8035485696000).

7311399987164 is an abundant number, since it is smaller than the sum of its proper divisors (8759571404836).

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

7311399987164 is a wasteful number, since it uses less digits than its factorization.

7311399987164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50048 (or 50032 counting only the distinct ones).

The product of its digits is 61725888, while the sum is 68.

The spelling of 7311399987164 in words is "seven trillion, three hundred eleven billion, three hundred ninety-nine million, nine hundred eighty-seven thousand, one hundred sixty-four".