7811813347060 has 48 divisors (see below), whose sum is σ = 17496583678224. Its totient is φ = 2919451394048.

The previous prime is 7811813347031. The next prime is 7811813347069. The reversal of 7811813347060 is 607433181187.

It can be written as a sum of positive squares in 8 ways, for example, as 486497880036 + 7325315467024 = 697494^2 + 2706532^2 .

It is a super-2 number, since 2×7811813347060² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7811813346995 and 7811813347013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7811813347069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83807149 + ... + 83900308.

It is an arithmetic number, because the mean of its divisors is an integer number (364512159963).

Almost surely, 2^{7811813347060} is an apocalyptic number.

It is an amenable number.

7811813347060 is an abundant number, since it is smaller than the sum of its proper divisors (9684770331164).

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

7811813347060 is a wasteful number, since it uses less digits than its factorization.

7811813347060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167707620 (or 167707618 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 7811813347060 in words is "seven trillion, eight hundred eleven billion, eight hundred thirteen million, three hundred forty-seven thousand, sixty".