8630879540 has 24 divisors (see below), whose sum is σ = 18126649800. Its totient is φ = 3452008448.

The previous prime is 8630879533. The next prime is 8630879557. The reversal of 8630879540 is 459780368.

It can be written as a sum of positive squares in 4 ways, for example, as 8271376 + 8622608164 = 2876^2 + 92858^2 .

It is a super-2 number, since 2×8630879540² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308036 + ... + 334884.

It is an arithmetic number, because the mean of its divisors is an integer number (755277075).

Almost surely, 2^8630879540 is an apocalyptic number.

It is an amenable number.

8630879540 is an abundant number, since it is smaller than the sum of its proper divisors (9495770260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8630879540 is a wasteful number, since it uses less digits than its factorization.

8630879540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42931 (or 42929 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 8630879540 is about 92902.5270915706. The cubic root of 8630879540 is about 2051.2488555435.

The spelling of 8630879540 in words is "eight billion, six hundred thirty million, eight hundred seventy-nine thousand, five hundred forty".