8756919990 has 256 divisors, whose sum is σ = 29670359040. Its totient is φ = 1787857920.

The previous prime is 8756919949. The next prime is 8756920037. The reversal of 8756919990 is 999196578.

It is a super-2 number, since 2×8756919990² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 755922 + ... + 767418.

It is an arithmetic number, because the mean of its divisors is an integer number (115899840).

Almost surely, 2^8756919990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8756919990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14835179520).

8756919990 is an abundant number, since it is smaller than the sum of its proper divisors (20913439050).

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

8756919990 is a wasteful number, since it uses less digits than its factorization.

8756919990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11564 (or 11558 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 63.

The square root of 8756919990 is about 93578.4162614435. The cubic root of 8756919990 is about 2061.1857306311.

The spelling of 8756919990 in words is "eight billion, seven hundred fifty-six million, nine hundred nineteen thousand, nine hundred ninety".