3475431161856 has 204 divisors, whose sum is σ = 10630680177312. Its totient is φ = 1090328199168.

The previous prime is 3475431161837. The next prime is 3475431161897. The reversal of 3475431161856 is 6581611345743.

3475431161856 is a `hidden beast` number, since 3 + 4 + 7 + 5 + 4 + 3 + 11 + 618 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (204).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9853705 + ... + 10200311.

Almost surely, 2^{3475431161856} is an apocalyptic number.

3475431161856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3475431161856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5315340088656).

3475431161856 is an abundant number, since it is smaller than the sum of its proper divisors (7155249015456).

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

3475431161856 is an equidigital number, since it uses as much as digits as its factorization.

3475431161856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346662 (or 346629 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 3475431161856 in words is "three trillion, four hundred seventy-five billion, four hundred thirty-one million, one hundred sixty-one thousand, eight hundred fifty-six".