7213687580161 has 4 divisors (see below), whose sum is σ = 7215371844912. Its totient is φ = 7212003315412.

The previous prime is 7213687580119. The next prime is 7213687580227. The reversal of 7213687580161 is 1610857863127.

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 7213687580161 - 2⁹ = 7213687579649 is a prime.

It is a super-3 number, since 3×7213687580161³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7213687580461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842125951 + ... + 842134516.

It is an arithmetic number, because the mean of its divisors is an integer number (1803842961228).

Almost surely, 2^{7213687580161} is an apocalyptic number.

It is an amenable number.

7213687580161 is a deficient number, since it is larger than the sum of its proper divisors (1684264751).

7213687580161 is a wasteful number, since it uses less digits than its factorization.

7213687580161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684264750.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 7213687580161 in words is "seven trillion, two hundred thirteen billion, six hundred eighty-seven million, five hundred eighty thousand, one hundred sixty-one".