7136113155721 has 4 divisors (see below), whose sum is σ = 7784850715344. Its totient is φ = 6487375596100.

The previous prime is 7136113155719. The next prime is 7136113155781. The reversal of 7136113155721 is 1275513116317.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7136113155721 - 2¹ = 7136113155719 is a prime.

It is a super-2 number, since 2×7136113155721² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7136113155781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324368779795 + ... + 324368779816.

It is an arithmetic number, because the mean of its divisors is an integer number (1946212678836).

Almost surely, 2^{7136113155721} is an apocalyptic number.

It is an amenable number.

7136113155721 is a deficient number, since it is larger than the sum of its proper divisors (648737559623).

7136113155721 is a wasteful number, since it uses less digits than its factorization.

7136113155721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648737559622.

The product of its digits is 132300, while the sum is 43.

The spelling of 7136113155721 in words is "seven trillion, one hundred thirty-six billion, one hundred thirteen million, one hundred fifty-five thousand, seven hundred twenty-one".