8635495440 has 960 divisors, whose sum is σ = 36002195712. Its totient is φ = 1680998400.

The previous prime is 8635495417. The next prime is 8635495447. The reversal of 8635495440 is 445945368.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 8635495440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8635495447) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 210621820 + ... + 210621860.

Almost surely, 2^8635495440 is an apocalyptic number.

8635495440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8635495440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18001097856).

8635495440 is an abundant number, since it is smaller than the sum of its proper divisors (27366700272).

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

8635495440 is a wasteful number, since it uses less digits than its factorization.

8635495440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The square root of 8635495440 is about 92927.3664751132. The cubic root of 8635495440 is about 2051.6144680368.

The spelling of 8635495440 in words is "eight billion, six hundred thirty-five million, four hundred ninety-five thousand, four hundred forty".