7868045888 has 56 divisors (see below), whose sum is σ = 15945014592. Its totient is φ = 3850755584.

The previous prime is 7868045851. The next prime is 7868045897. The reversal of 7868045888 is 8885408687.

It is a happy number.

It is a super-2 number, since 2×7868045888² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7868045888.

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, 1581581 + ... + 1586547.

Almost surely, 2^7868045888 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 7868045888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7972507296).

7868045888 is an abundant number, since it is smaller than the sum of its proper divisors (8076968704).

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

7868045888 is a wasteful number, since it uses less digits than its factorization.

7868045888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5499 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 27525120, while the sum is 62.

The square root of 7868045888 is about 88702.0061103468. The cubic root of 7868045888 is about 1988.9428058850.

The spelling of 7868045888 in words is "seven billion, eight hundred sixty-eight million, forty-five thousand, eight hundred eighty-eight".