3471521378 has 32 divisors (see below), whose sum is σ = 5677916160. Its totient is φ = 1582338240.

The previous prime is 3471521377. The next prime is 3471521387. The reversal of 3471521378 is 8731251743.

It is a super-2 number, since 2×3471521378² = 24102921355822037768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3471521377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 753863 + ... + 758453.

It is an arithmetic number, because the mean of its divisors is an integer number (177434880).

Almost surely, 2^3471521378 is an apocalyptic number.

3471521378 is a deficient number, since it is larger than the sum of its proper divisors (2206394782).

3471521378 is a wasteful number, since it uses less digits than its factorization.

3471521378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4962.

The product of its digits is 141120, while the sum is 41.

The square root of 3471521378 is about 58919.6179383404. The cubic root of 3471521378 is about 1514.1652723605.

The spelling of 3471521378 in words is "three billion, four hundred seventy-one million, five hundred twenty-one thousand, three hundred seventy-eight".