3509117890 has 8 divisors (see below), whose sum is σ = 6316412220. Its totient is φ = 1403647152.

The previous prime is 3509117869. The next prime is 3509117891. The reversal of 3509117890 is 987119053.

It can be written as a sum of positive squares in 2 ways, for example, as 3377120769 + 131997121 = 58113^2 + 11489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3509117891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175455885 + ... + 175455904.

Almost surely, 2^3509117890 is an apocalyptic number.

3509117890 is a deficient number, since it is larger than the sum of its proper divisors (2807294330).

3509117890 is a wasteful number, since it uses less digits than its factorization.

3509117890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350911796.

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 3509117890 is about 59237.8079439137. The cubic root of 3509117890 is about 1519.6117848015.

It can be divided in two parts, 350911 and 7890, that added together give a square (358801 = 599²).

The spelling of 3509117890 in words is "three billion, five hundred nine million, one hundred seventeen thousand, eight hundred ninety".