7181637616052 has 6 divisors (see below), whose sum is σ = 12567865828098. Its totient is φ = 3590818808024.

The previous prime is 7181637616051. The next prime is 7181637616057. The reversal of 7181637616052 is 2506167361817.

It can be written as a sum of positive squares in only one way, i.e., 5623224939556 + 1558412676496 = 2371334^2 + 1248364^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7181637615985 and 7181637616003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7181637616051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 897704702003 + ... + 897704702010.

It is an arithmetic number, because the mean of its divisors is an integer number (2094644304683).

Almost surely, 2^{7181637616052} is an apocalyptic number.

It is an amenable number.

7181637616052 is a deficient number, since it is larger than the sum of its proper divisors (5386228212046).

7181637616052 is a wasteful number, since it uses less digits than its factorization.

7181637616052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795409404017 (or 1795409404015 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 7181637616052 in words is "seven trillion, one hundred eighty-one billion, six hundred thirty-seven million, six hundred sixteen thousand, fifty-two".