3478072723212 has 12 divisors (see below), whose sum is σ = 8115503020856. Its totient is φ = 1159357574400.

The previous prime is 3478072723211. The next prime is 3478072723217. The reversal of 3478072723212 is 2123272708743.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3478072723211) 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, 144919696789 + ... + 144919696812.

Almost surely, 2^{3478072723212} is an apocalyptic number.

It is an amenable number.

3478072723212 is an abundant number, since it is smaller than the sum of its proper divisors (4637430297644).

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

3478072723212 is a wasteful number, since it uses less digits than its factorization.

3478072723212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289839393608 (or 289839393606 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 48.

The spelling of 3478072723212 in words is "three trillion, four hundred seventy-eight billion, seventy-two million, seven hundred twenty-three thousand, two hundred twelve".