3611469378 has 64 divisors (see below), whose sum is σ = 8119222272. Its totient is φ = 1061518080.

The previous prime is 3611469377. The next prime is 3611469391. The reversal of 3611469378 is 8739641163.

It is a happy number.

It is a super-2 number, since 2×3611469378² = 26085422136463413768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3611469377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345375 + ... + 355677.

It is an arithmetic number, because the mean of its divisors is an integer number (126862848).

Almost surely, 2^3611469378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3611469378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4059611136).

3611469378 is an abundant number, since it is smaller than the sum of its proper divisors (4507752894).

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

3611469378 is a wasteful number, since it uses less digits than its factorization.

3611469378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10479.

The product of its digits is 653184, while the sum is 48.

The square root of 3611469378 is about 60095.5021445033. The cubic root of 3611469378 is about 1534.2447490825.

The spelling of 3611469378 in words is "three billion, six hundred eleven million, four hundred sixty-nine thousand, three hundred seventy-eight".