8781242090 has 32 divisors (see below), whose sum is σ = 15861056256. Its totient is φ = 3500340480.

The previous prime is 8781242069. The next prime is 8781242111. The reversal of 8781242090 is 902421878.

It is an interprime number because it is at equal distance from previous prime (8781242069) and next prime (8781242111).

It is a super-2 number, since 2×8781242090² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4687394 + ... + 4689266.

It is an arithmetic number, because the mean of its divisors is an integer number (495658008).

Almost surely, 2^8781242090 is an apocalyptic number.

8781242090 is a deficient number, since it is larger than the sum of its proper divisors (7079814166).

8781242090 is a wasteful number, since it uses less digits than its factorization.

8781242090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 8781242090 is about 93708.2818645183. The cubic root of 8781242090 is about 2063.0922618184.

The spelling of 8781242090 in words is "eight billion, seven hundred eighty-one million, two hundred forty-two thousand, ninety".