7671137513 has 4 divisors (see below), whose sum is σ = 8261225028. Its totient is φ = 7081050000.

The previous prime is 7671137503. The next prime is 7671137531. The reversal of 7671137513 is 3157311767.

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 4320695824 + 3350441689 = 65732^2 + 57883^2 .

It is a cyclic number.

It is not a de Polignac number, because 7671137513 - 2¹⁶ = 7671071977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7671137503) 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, 295043738 + ... + 295043763.

It is an arithmetic number, because the mean of its divisors is an integer number (2065306257).

Almost surely, 2^7671137513 is an apocalyptic number.

It is an amenable number.

7671137513 is a deficient number, since it is larger than the sum of its proper divisors (590087515).

7671137513 is a wasteful number, since it uses less digits than its factorization.

7671137513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590087514.

The product of its digits is 92610, while the sum is 41.

The square root of 7671137513 is about 87585.0301878123. The cubic root of 7671137513 is about 1972.2104516452.

The spelling of 7671137513 in words is "seven billion, six hundred seventy-one million, one hundred thirty-seven thousand, five hundred thirteen".