8687258461 has 24 divisors (see below), whose sum is σ = 10315449144. Its totient is φ = 7292113920.

The previous prime is 8687258449. The next prime is 8687258479. The reversal of 8687258461 is 1648527868.

It can be written as a sum of positive squares in 4 ways, for example, as 5368346361 + 3318912100 = 73269^2 + 57610^2 .

It is not a de Polignac number, because 8687258461 - 2⁹ = 8687257949 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8687258441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1537201 + ... + 1542841.

It is an arithmetic number, because the mean of its divisors is an integer number (429810381).

Almost surely, 2^8687258461 is an apocalyptic number.

It is an amenable number.

8687258461 is a deficient number, since it is larger than the sum of its proper divisors (1628190683).

8687258461 is a wasteful number, since it uses less digits than its factorization.

8687258461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6301 (or 6294 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 55.

The square root of 8687258461 is about 93205.4636864170. The cubic root of 8687258461 is about 2055.7055776737.

The spelling of 8687258461 in words is "eight billion, six hundred eighty-seven million, two hundred fifty-eight thousand, four hundred sixty-one".