4686515961913 has 4 divisors (see below), whose sum is σ = 4686615104548. Its totient is φ = 4686416819280.

The previous prime is 4686515961871. The next prime is 4686515961971. The reversal of 4686515961913 is 3191695156864.

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 4046904702864 + 639611259049 = 2011692^2 + 799757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4686515961913 is a prime.

It is a super-2 number, since 2×4686515961913² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4686515968913) 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, 49500378 + ... + 49594963.

It is an arithmetic number, because the mean of its divisors is an integer number (1171653776137).

Almost surely, 2^{4686515961913} is an apocalyptic number.

It is an amenable number.

4686515961913 is a deficient number, since it is larger than the sum of its proper divisors (99142635).

4686515961913 is an equidigital number, since it uses as much as digits as its factorization.

4686515961913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99142634.

The product of its digits is 41990400, while the sum is 64.

The spelling of 4686515961913 in words is "four trillion, six hundred eighty-six billion, five hundred fifteen million, nine hundred sixty-one thousand, nine hundred thirteen".