8637549480 has 320 divisors, whose sum is σ = 33598555200. Its totient is φ = 1973704320.

The previous prime is 8637549469. The next prime is 8637549491. The reversal of 8637549480 is 849457368.

8637549480 is a `hidden beast` number, since 8 + 6 + 3 + 75 + 494 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (8637549469) and next prime (8637549491).

It is a super-2 number, since 2×8637549480² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2591415 + ... + 2594745.

It is an arithmetic number, because the mean of its divisors is an integer number (104995485).

Almost surely, 2^8637549480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8637549480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16799277600).

8637549480 is an abundant number, since it is smaller than the sum of its proper divisors (24961005720).

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

8637549480 is a wasteful number, since it uses less digits than its factorization.

8637549480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379 (or 3348 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The square root of 8637549480 is about 92938.4176753618. The cubic root of 8637549480 is about 2051.7771208972. Note that the first 3 decimals are identical.

The spelling of 8637549480 in words is "eight billion, six hundred thirty-seven million, five hundred forty-nine thousand, four hundred eighty".