8637936540 has 48 divisors (see below), whose sum is σ = 24202096800. Its totient is φ = 2301937920.

The previous prime is 8637936533. The next prime is 8637936569. The reversal of 8637936540 is 456397368.

It is a super-2 number, since 2×8637936540² (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 15 ways as a sum of consecutive naturals, for example, 46470 + ... + 139410.

It is an arithmetic number, because the mean of its divisors is an integer number (504210350).

Almost surely, 2^8637936540 is an apocalyptic number.

It is a pronic number, being equal to 92940×92941.

It is an amenable number.

8637936540 is an abundant number, since it is smaller than the sum of its proper divisors (15564160260).

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

8637936540 is a wasteful number, since it uses less digits than its factorization.

8637936540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94502 (or 94500 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The square root of 8637936540 is about 92940.4999986551. The cubic root of 8637936540 is about 2051.8077680536.

The spelling of 8637936540 in words is "eight billion, six hundred thirty-seven million, nine hundred thirty-six thousand, five hundred forty".