8719640190 has 48 divisors (see below), whose sum is σ = 23198308848. Its totient is φ = 2271161088.

The previous prime is 8719640129. The next prime is 8719640197. The reversal of 8719640190 is 910469178.

It is a happy number.

8719640190 is a `hidden beast` number, since 8 + 71 + 96 + 401 + 90 = 666.

It is a super-2 number, since 2×8719640190² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8719640197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1122699 + ... + 1130438.

It is an arithmetic number, because the mean of its divisors is an integer number (483298101).

Almost surely, 2^8719640190 is an apocalyptic number.

8719640190 is an abundant number, since it is smaller than the sum of its proper divisors (14478668658).

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

8719640190 is a wasteful number, since it uses less digits than its factorization.

8719640190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253193 (or 2253190 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 8719640190 is about 93379.0136486780. The cubic root of 8719640190 is about 2058.2566226809.

The spelling of 8719640190 in words is "eight billion, seven hundred nineteen million, six hundred forty thousand, one hundred ninety".