8579890378 has 12 divisors (see below), whose sum is σ = 13671417942. Its totient is φ = 4037595200.

The previous prime is 8579890349. The next prime is 8579890409. The reversal of 8579890378 is 8730989758.

It can be written as a sum of positive squares in 3 ways, for example, as 8540162569 + 39727809 = 92413^2 + 6303^2 .

It is a super-2 number, since 2×8579890378² (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 5 ways as a sum of consecutive naturals, for example, 7421473 + ... + 7422628.

Almost surely, 2^8579890378 is an apocalyptic number.

8579890378 is a deficient number, since it is larger than the sum of its proper divisors (5091527564).

8579890378 is a wasteful number, since it uses less digits than its factorization.

8579890378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14844137 (or 14844120 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 64.

The square root of 8579890378 is about 92627.6976827126. The cubic root of 8579890378 is about 2047.2014462593.

The spelling of 8579890378 in words is "eight billion, five hundred seventy-nine million, eight hundred ninety thousand, three hundred seventy-eight".