8540179490 has 16 divisors (see below), whose sum is σ = 15395591160. Its totient is φ = 3410901120.

The previous prime is 8540179481. The next prime is 8540179499. The reversal of 8540179490 is 949710458.

It is an interprime number because it is at equal distance from previous prime (8540179481) and next prime (8540179499).

It can be written as a sum of positive squares in 4 ways, for example, as 7510475569 + 1029703921 = 86663^2 + 32089^2 .

It is not an unprimeable number, because it can be changed into a prime (8540179499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639395 + ... + 652614.

Almost surely, 2^8540179490 is an apocalyptic number.

8540179490 is a deficient number, since it is larger than the sum of its proper divisors (6855411670).

8540179490 is a wasteful number, since it uses less digits than its factorization.

8540179490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292677.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 8540179490 is about 92413.0915509269. The cubic root of 8540179490 is about 2044.0381605551.

The spelling of 8540179490 in words is "eight billion, five hundred forty million, one hundred seventy-nine thousand, four hundred ninety".