3475645278 has 64 divisors (see below), whose sum is σ = 8101624320. Its totient is φ = 973475712.

The previous prime is 3475645247. The next prime is 3475645333. The reversal of 3475645278 is 8725465743.

It is a happy number.

It is a super-2 number, since 2×3475645278² = 24160220196967394568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3475645278.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 982000 + ... + 985532.

It is an arithmetic number, because the mean of its divisors is an integer number (126587880).

Almost surely, 2^3475645278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3475645278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4050812160).

3475645278 is an abundant number, since it is smaller than the sum of its proper divisors (4625979042).

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

3475645278 is a wasteful number, since it uses less digits than its factorization.

3475645278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001.

The product of its digits is 5644800, while the sum is 51.

The square root of 3475645278 is about 58954.6035352626. The cubic root of 3475645278 is about 1514.7646056737.

The spelling of 3475645278 in words is "three billion, four hundred seventy-five million, six hundred forty-five thousand, two hundred seventy-eight".