7671507247321 has 4 divisors (see below), whose sum is σ = 7713891265444. Its totient is φ = 7629123229200.

The previous prime is 7671507247253. The next prime is 7671507247387. The reversal of 7671507247321 is 1237427051767.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3795093610000 + 3876413637321 = 1948100^2 + 1968861^2 .

It is a cyclic number.

It is not a de Polignac number, because 7671507247321 - 2¹³ = 7671507239129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7671507244321) 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, 21192008790 + ... + 21192009151.

It is an arithmetic number, because the mean of its divisors is an integer number (1928472816361).

Almost surely, 2^{7671507247321} is an apocalyptic number.

It is an amenable number.

7671507247321 is a deficient number, since it is larger than the sum of its proper divisors (42384018123).

7671507247321 is a wasteful number, since it uses less digits than its factorization.

7671507247321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42384018122.

The product of its (nonzero) digits is 3457440, while the sum is 52.

The spelling of 7671507247321 in words is "seven trillion, six hundred seventy-one billion, five hundred seven million, two hundred forty-seven thousand, three hundred twenty-one".